USRE28667E - Double tray dental apparatus - Google Patents

Double tray dental apparatus Download PDF

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Publication number
USRE28667E
USRE28667E US22334372A USRE28667E US RE28667 E USRE28667 E US RE28667E US 22334372 A US22334372 A US 22334372A US RE28667 E USRE28667 E US RE28667E
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Prior art keywords
trays
troughs
resilient members
pair
tray
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/90—Oral protectors for use during treatment, e.g. lip or mouth protectors
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
    • A63B71/085—Mouth or teeth protectors

Definitions

  • ABSTRACT Apparatus is provided to encase both upper and lower dentition of a human mouth.
  • a pair of trays are resiliently hinged together to apply forces operating in a divergent manner to aid in retention of the apparatus in the mouth during use which may be as a m'outhguard and as a medication applicator.
  • a feature of this invention has been the provision of two U-shaped trays shaped to encase the upper and lower dentition in the human mouth. Normally the two trays are disposed coplanar in mirrorlike relation. They are joined at the sides by integral flexible and resilient hinge means permitting the [troughs trays to be disposed to embrace upper and lower dentition.
  • the hinge means operate to insure seating and retention of the trays in place in the mouth.
  • Spongelike material placed in the tray bottoms provide cushioning and also may serve as a carrier and applicator for oral medication.
  • FIG. 5 is a plan view of a double-tray insert
  • FIG. 6 is a cross section of a tray showing insert retention means.
  • Each tray is U-shaped and comprises a bottom 14, the inner or lingual wall 16.
  • the open ends of their U-shapes face each other, as shown.
  • Hinge members22,22 span between the trays, being anchored at 24 at their ends by the lap connections to like buccal walls 18 of the two trays an appreciable distance forward of the end walls 20.
  • the trays 10,12 and hinge members are produced integrally by plastic molding techniques from pliant materials of which polyvinyl chloride, polyethylene and similar plastic materials are suitable.
  • the trays should not be hard and inflexible.
  • each tray is configured and sized and shaped to loosely fit either the upper or lower dentition of a user when the apparatus is folded as in FIG. 2.
  • the flexible hinge members 22 are bent or bowed so that their natural resilience functions to exert divergent forces tending to press and hold the trays into contact with the users teeth.
  • the elongate form of hinge members 22 permits the trays to conform to the user's jaws with respect to anterior-posterior as well as lateral malrelationship.
  • a tray may shift forward and rearward as 2 well as laterally with respect to the other tray to obtain the desired conformance.
  • An insert 26 formed of spongelike resilient material may be disposed in the cavity of either or both trays.
  • a particular such use is concerned with applying fluoride compounds which are available in liquid and gel form.
  • fluoride compounds which are available in liquid and gel form.
  • Such compound may be introduced to the insert or inserts in place in the apparatus.
  • the user bites down and compresses the insert material causing the medication to be forced into all interproximal spaces and around and about the teeth. Relief of such pressure causes a sucking back. The result is a thorough and complete bathing treatment of the users dentition.
  • the double insert comprising portions 27,28 are connected by lateral extending bridges 30,30 which also permit lateral and anterior-posterior adjusting movements to accommodate malocclusion.
  • the bridge members 22 may be medially thinned as at 23 to some degree less than their cross section adjacent their lap connected and anchored ends to facilitate the lateral and anterior-posterior shifting required where malocclusion is encountered.
  • instanding horns 32 are shown on the inner surfaces of the walls 16,18 to overlie the insert 26 to loosely hold it in the channel as the device is being readied or placed in the mouth.
  • Dental apparatus comprising:
  • a pair of upper and lower dentition I encasing troughs; J trays; a hairpin-shaped resilient bridge member disposed adjacent the buccal exteriors of said paired I: troughs J trays at each side;
  • said resilient members each having a U-end between a pair of outwardly biased legs; [and 1 said trays and said resilient members being formed of the same pliant material; and
  • said legs being joined to said [trough tray sides forward of the posterior portions thereof, the ends of each said leg having a lap connection, non-pivotally anchoring said end to a tray side, the intermediate portions of said resilient members each having reduced cross-sectional area relative the cross-sec- [ions of said leg ends adjacent said lap connections thereby insuring bending of the resilient members into hairpin shape, said lap connections transferring the forces of said resilient members into the tray sides before and behind said connections whereby resilient members in use exert divergent forces on said trays tending to uniformly press and hold the trays into contact with the user's teeth during opening and closing of the jaws and during lateral and anterior/posterior movements thereof.

Abstract

Apparatus is provided to encase both upper and lower dentition of a human mouth. A pair of trays are resiliently hinged together to apply forces operating in a divergent manner to aid in retention of the apparatus in the mouth during use which may be as a mouthguard and as a medication applicator.

Description

United States Patent [1 1 Gores [54] DOUBLE TRAY DENTAL APPARATUS [75] Inventor: Kenneth W. Gores, Bellevue, Wash.
[73] Assignee: Kirkman Laboratories, Inc.,
Portland, Oreg.
[22] Filed: Feb. 3, 1972 [21] Appl. No.: 223,343
Related US. Patent Documents Reissue of:
[64] Patent No.: 3,536,069
Issued: Oct. 27, 1970 Appl. No.: 856,395
Filed: Sept. 9, 1969 [52] US. Cl 128/136; 32/14 [51] Int. Cl. A61F 5/56 [58] Field of Search 32/17, 14;128/136,134,
[ 1 E Re. 28,667
[ Reissued Dec. 30, 1975 [56] References Cited UNITED STATES PATENTS 1,023,213 4/1912 Marcks 32/17 2,857,909 10/1958 Johnson 128/136 3,416,527 12/1968 Hoef 128/136 Primary Examiner-Robert Peshock 57 ABSTRACT Apparatus is provided to encase both upper and lower dentition of a human mouth. A pair of trays are resiliently hinged together to apply forces operating in a divergent manner to aid in retention of the apparatus in the mouth during use which may be as a m'outhguard and as a medication applicator.
5 Claims, 6 Drawing Figures Reissued Dec. 30, 1975 MM 3 MLL 7 M M M KWLT DOUBLE TRAY DENTAL APPARATUS Matter enclosed in heavy brackets I: 1 appears in the original patent but forms no part of this reissue specification; matter printed in italics indicates the additions made by reissue.
SUMMARY OF THE INVENTION A feature of this invention has been the provision of two U-shaped trays shaped to encase the upper and lower dentition in the human mouth. Normally the two trays are disposed coplanar in mirrorlike relation. They are joined at the sides by integral flexible and resilient hinge means permitting the [troughs trays to be disposed to embrace upper and lower dentition. The hinge means operate to insure seating and retention of the trays in place in the mouth. Spongelike material placed in the tray bottoms provide cushioning and also may serve as a carrier and applicator for oral medication.
DESCRIPTION OF THE DRAWINGS single tray insert;
FIG. 5 is a plan view of a double-tray insert; and FIG. 6 is a cross section of a tray showing insert retention means.
DETAILED DESCRIPTION Two trays l0 and i2 are arranged in mirrorlike relation to each other as shown in FIG. 1 in which the trays are shown in'their normal coplanar disposition. Each tray is U-shaped and comprises a bottom 14, the inner or lingual wall 16. The outer or buccal wall 18 and rear or end walls 20. In the preferred arrangement of trays l0 and 12 the open ends of their U-shapes face each other, as shown.
Hinge members22,22 span between the trays, being anchored at 24 at their ends by the lap connections to like buccal walls 18 of the two trays an appreciable distance forward of the end walls 20.
Desirably the trays 10,12 and hinge members are produced integrally by plastic molding techniques from pliant materials of which polyvinyl chloride, polyethylene and similar plastic materials are suitable. For the sake of comfort to the user, the trays should not be hard and inflexible.
The channel cavity in each tray is configured and sized and shaped to loosely fit either the upper or lower dentition of a user when the apparatus is folded as in FIG. 2. In such situation the flexible hinge members 22 are bent or bowed so that their natural resilience functions to exert divergent forces tending to press and hold the trays into contact with the users teeth.
The elongate form of hinge members 22 permits the trays to conform to the user's jaws with respect to anterior-posterior as well as lateral malrelationship. In other words, a tray may shift forward and rearward as 2 well as laterally with respect to the other tray to obtain the desired conformance.
While this apparatus may be used as a mouthguard by athletes engaging in body contact sports, it has another valuable use in the application of medicinal compounds. An insert 26 formed of spongelike resilient material may be disposed in the cavity of either or both trays. A particular such use is concerned with applying fluoride compounds which are available in liquid and gel form. Such compound may be introduced to the insert or inserts in place in the apparatus. When the two trays are placed in the mouth, the user bites down and compresses the insert material causing the medication to be forced into all interproximal spaces and around and about the teeth. Relief of such pressure causes a sucking back. The result is a thorough and complete bathing treatment of the users dentition.
In FIG. 5 the double insert comprising portions 27,28 are connected by lateral extending bridges 30,30 which also permit lateral and anterior-posterior adjusting movements to accommodate malocclusion.
The bridge members 22 may be medially thinned as at 23 to some degree less than their cross section adjacent their lap connected and anchored ends to facilitate the lateral and anterior-posterior shifting required where malocclusion is encountered.
In FIG. 6 instanding horns 32 are shown on the inner surfaces of the walls 16,18 to overlie the insert 26 to loosely hold it in the channel as the device is being readied or placed in the mouth.
The apparatus here disclosed is the preferred form. It will be apparent to those skilled in the art that alternatives may be employed to accomplish the same results. Also materials may be substituted to obtain equivalent structure and performance.
I claim:
1. Dental apparatus, comprising:
a pair of upper and lower dentition I: encasing troughs; J trays; a hairpin-shaped resilient bridge member disposed adjacent the buccal exteriors of said paired I: troughs J trays at each side;
said resilient members each having a U-end between a pair of outwardly biased legs; [and 1 said trays and said resilient members being formed of the same pliant material; and
said legs being joined to said [trough tray sides forward of the posterior portions thereof, the ends of each said leg having a lap connection, non-pivotally anchoring said end to a tray side, the intermediate portions of said resilient members each having reduced cross-sectional area relative the cross-sec- [ions of said leg ends adjacent said lap connections thereby insuring bending of the resilient members into hairpin shape, said lap connections transferring the forces of said resilient members into the tray sides before and behind said connections whereby resilient members in use exert divergent forces on said trays tending to uniformly press and hold the trays into contact with the user's teeth during opening and closing of the jaws and during lateral and anterior/posterior movements thereof.
2. Apparatus according to claim 1 in which the U- ends of said resilient members are disposed adjacent the posterior portions of said pair [troughs of trays and said legs are attached forward thereof.
I: 3. Apparatus according to claim 1 in which the troughs and resilient members are formed of pliant material and said resilient members are integrally ays. ioined thereto] 6. Apparatus according to claim 5 in which said 4. Apparatus according to claim 3 in which said I: troughs trays include instanding means upon their I: troughs 1 trays are closed at their posterior portions. 5 inner surfaces to partially overlie and retain said inserts 5. Apparatus according to claim 1 in which porous, in said troughs. 1 trays. spongelike inserts are disposed in said [troughs]

Claims (5)

1. Dental apparatus, comprising: a pair of upper and lower dentition (encasing troughs;) trays; a hairpin-shaped resilient bridge member disposed adjacent the buccal exteriors of said paired (troughs) trays at each side; said resilient members each having a U-end between a pair of outwardly biased legs; (and) said trays and said resilient members being formed of the same pliant material; and said legs being joined to said (trough) tray sides forward of the posterior portions thereof, the ends of each said leg having a lap connection, non-pivotally anchoring said end to a tray side, the intermediate portions of said resilient members each having reduced cross-sectional area relative the crosssections of said leg ends adjacent said lap connections thereby insuring bending of the resilient members into hairpin shape, said lap connections transferring the forces of said resilient members into the tray sides before and behind said connections whereby resilient members in use exert divergent forces on said trays tending to uniformly press and hold the trays into contact with the user''s teeth during opening and closing of the jaws and during lateral and anterior/posterior movements thereof.
2. Apparatus according to claim 1 in which the U-ends of said resilient members are disposed adjacent the posterior portions of said pair (troughs) of trays and said legs are attached forward thereof. ( 3. Apparatus according to claim 1 in which the troughs and resilient members are formed of pliant material and said resilient members are integrally joined thereto.)
4. Apparatus according to claim 3 in which said (troughs) trays are closed at their posterior portions.
5. Apparatus according to claim 1 in which porous, spongelike inserts are disposed in said (troughs.) trays.
6. Apparatus according to claim 5 in which said (troughs) trays include instanding means upon their inner surfaces to partially overlie and retain said inserts in said (troughs.) trays.
US22334372 1969-09-09 1972-02-03 Double tray dental apparatus Expired USRE28667E (en)

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453633A1 (en) * 1979-04-09 1980-11-07 Bruhn Peter MEDICAL DEVICE FOR PROTECTING THE UPPER TOOTHING OF A PERSON
DE3625790A1 (en) * 1986-07-30 1988-02-04 Horst Qualmann DEVICE FOR PREVENTING HUMAN SNORKING
EP0337201A1 (en) * 1988-04-11 1989-10-18 Earl O. Dr. Bergersen Self-opening preformed activator and positioner
USRE34196E (en) * 1988-08-23 1993-03-16 Dunhall Pharmaceuticals, Inc. Method and material for brightening teeth
US5211559A (en) * 1991-07-18 1993-05-18 Gillette Canada Inc. Dental treatment tray for holding medicament gel
US5855870A (en) * 1990-03-22 1999-01-05 Ultradent Products, Inc. Method for treating sensitive teeth
US5985249A (en) 1990-03-22 1999-11-16 Ultradent Products, Inc. Sticky dental compositions for adhering a passive-type dental tray over a person's teeth
US6036943A (en) 1990-03-22 2000-03-14 Ultradent Products, Inc. Methods for treating a person's teeth using sticky dental compositions in combination with passive-type dental trays
US6306370B1 (en) 1997-05-30 2001-10-23 Ultradent Products, Inc. Compositions and methods for whitening and desensitizing teeth
US6309625B1 (en) 1998-11-12 2001-10-30 Ultradent Products, Inc. One-part dental compositions and methods for bleaching and desensitizing teeth
US20030232311A1 (en) * 2000-11-13 2003-12-18 Keller Duane C. Periodontal medicament delivery tray
US20050199247A1 (en) * 2004-03-11 2005-09-15 Charles Garabadian Dental appliance for the treatment of sleep disorders
US20050241650A1 (en) * 2004-04-29 2005-11-03 Lombardi Drew R Anterior sextant dental bite tray apparatus
US20090136893A1 (en) * 2007-11-26 2009-05-28 Peter John Zegarelli Oral appliance for delivering a medicament
US20120085354A1 (en) * 2010-05-17 2012-04-12 Polk Iii Louis F Mouthguard with linear storage configuration
USD688832S1 (en) 2011-05-17 2013-08-27 Shock Doctor, Inc. Mouthguard
US8607798B2 (en) 2010-06-02 2013-12-17 Shock Doctor, Inc. Custom mouthguard
US9345276B2 (en) 2013-03-13 2016-05-24 Shock Doctor, Inc. Clothing article with protective cup
USD830001S1 (en) 2016-09-27 2018-10-02 Shock Doctor, Inc. Mouthguard
USD830002S1 (en) 2016-09-27 2018-10-02 Shock Doctor, Inc. Mouthguard
US20180325625A1 (en) * 2017-05-11 2018-11-15 P & D Mouthguards, Inc. Mouthguard system
USD834258S1 (en) 2016-09-30 2018-11-20 Shock Doctor, Inc. Mouthguard
USD839485S1 (en) 2017-07-14 2019-01-29 Shock Doctor, Inc. Mouthguard
US10201399B2 (en) 2005-04-25 2019-02-12 D. Scott Morgan Mouth guard
USD841257S1 (en) 2017-07-14 2019-02-19 Shock Doctor, Inc. Mouthguard
USD854753S1 (en) 2017-12-15 2019-07-23 Shock Doctor, Inc. Mouthguard
USD857301S1 (en) 2017-12-15 2019-08-20 Shock Doctor, Inc. Mouth guard
US10661062B2 (en) 2013-02-26 2020-05-26 Shock Doctor, Inc. Mouthguard with selective flavor components
US11179622B2 (en) 2018-01-10 2021-11-23 Shock Doctor, Inc. Mouthguard with tapered breathing channel
US11273360B2 (en) 2016-09-30 2022-03-15 Shock Doctor, Inc. Mouthguard including a protection portion having heating and softening features
US11273022B2 (en) 2018-02-13 2022-03-15 Emanate Biomedical, Inc. Oral appliance in a blockchain system
USD963950S1 (en) 2020-01-28 2022-09-13 Shock Doctor, Inc. Mouthguard

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1023213A (en) * 1911-06-28 1912-04-16 Miecislaw Marcks Dental impression-cup.
US2857909A (en) * 1955-11-14 1958-10-28 Carroll W Johnson Tooth protector
US3416527A (en) * 1966-11-25 1968-12-17 Weck & Co Edward Topical arch tray

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1023213A (en) * 1911-06-28 1912-04-16 Miecislaw Marcks Dental impression-cup.
US2857909A (en) * 1955-11-14 1958-10-28 Carroll W Johnson Tooth protector
US3416527A (en) * 1966-11-25 1968-12-17 Weck & Co Edward Topical arch tray

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453633A1 (en) * 1979-04-09 1980-11-07 Bruhn Peter MEDICAL DEVICE FOR PROTECTING THE UPPER TOOTHING OF A PERSON
DE3625790A1 (en) * 1986-07-30 1988-02-04 Horst Qualmann DEVICE FOR PREVENTING HUMAN SNORKING
EP0337201A1 (en) * 1988-04-11 1989-10-18 Earl O. Dr. Bergersen Self-opening preformed activator and positioner
USRE34196E (en) * 1988-08-23 1993-03-16 Dunhall Pharmaceuticals, Inc. Method and material for brightening teeth
US5855870A (en) * 1990-03-22 1999-01-05 Ultradent Products, Inc. Method for treating sensitive teeth
US5985249A (en) 1990-03-22 1999-11-16 Ultradent Products, Inc. Sticky dental compositions for adhering a passive-type dental tray over a person's teeth
US6036943A (en) 1990-03-22 2000-03-14 Ultradent Products, Inc. Methods for treating a person's teeth using sticky dental compositions in combination with passive-type dental trays
US6086855A (en) 1990-03-22 2000-07-11 Ultradent Products, Inc. Methods for making scalloped dental trays for use in treating teeth with sticky dental compositions
US6183251B1 (en) 1990-03-22 2001-02-06 Ultradent Products, Inc. Scalloped dental trays for use in treating teeth with sticky dental compositions
US5211559A (en) * 1991-07-18 1993-05-18 Gillette Canada Inc. Dental treatment tray for holding medicament gel
US6306370B1 (en) 1997-05-30 2001-10-23 Ultradent Products, Inc. Compositions and methods for whitening and desensitizing teeth
US6368576B1 (en) 1998-11-12 2002-04-09 Ultradent Products, Inc. Methods for bleaching, opacifying and desensitizing teeth
US6309625B1 (en) 1998-11-12 2001-10-30 Ultradent Products, Inc. One-part dental compositions and methods for bleaching and desensitizing teeth
US20030232311A1 (en) * 2000-11-13 2003-12-18 Keller Duane C. Periodontal medicament delivery tray
US6966773B2 (en) 2000-11-13 2005-11-22 Keller Duane C Periodontal medicament delivery tray
US6983752B2 (en) * 2004-03-11 2006-01-10 Sleep Sound Services Zzz Dental appliance for the treatment of sleep disorders
US20050199247A1 (en) * 2004-03-11 2005-09-15 Charles Garabadian Dental appliance for the treatment of sleep disorders
US7404404B2 (en) * 2004-04-29 2008-07-29 Lbb Enterprises, Llc Anterior sextant dental bite tray apparatus
US20050241650A1 (en) * 2004-04-29 2005-11-03 Lombardi Drew R Anterior sextant dental bite tray apparatus
US10201399B2 (en) 2005-04-25 2019-02-12 D. Scott Morgan Mouth guard
US9579178B2 (en) 2007-11-26 2017-02-28 Peter John Zegarelli Oral appliance for delivering a medicament
US20090136893A1 (en) * 2007-11-26 2009-05-28 Peter John Zegarelli Oral appliance for delivering a medicament
US8113837B2 (en) 2007-11-26 2012-02-14 Peter John Zegarelli Oral appliance for delivering a medicament
US8585406B2 (en) 2007-11-26 2013-11-19 Peter John Zegarelli Method for constructing an oral appliance for delivering a medicament
US20120085354A1 (en) * 2010-05-17 2012-04-12 Polk Iii Louis F Mouthguard with linear storage configuration
US8689796B2 (en) * 2010-05-17 2014-04-08 Shock Doctor, Inc. Mouthguard with linear storage configuration
US8607798B2 (en) 2010-06-02 2013-12-17 Shock Doctor, Inc. Custom mouthguard
USD688832S1 (en) 2011-05-17 2013-08-27 Shock Doctor, Inc. Mouthguard
US10661062B2 (en) 2013-02-26 2020-05-26 Shock Doctor, Inc. Mouthguard with selective flavor components
US9345276B2 (en) 2013-03-13 2016-05-24 Shock Doctor, Inc. Clothing article with protective cup
USD830001S1 (en) 2016-09-27 2018-10-02 Shock Doctor, Inc. Mouthguard
USD830002S1 (en) 2016-09-27 2018-10-02 Shock Doctor, Inc. Mouthguard
USD916382S1 (en) 2016-09-27 2021-04-13 Shock Doctor, Inc. Mouthguard
US11273360B2 (en) 2016-09-30 2022-03-15 Shock Doctor, Inc. Mouthguard including a protection portion having heating and softening features
US11878232B2 (en) 2016-09-30 2024-01-23 Shock Doctor, Inc. Mouthguard including a protection portion having heating and softening features
USD834258S1 (en) 2016-09-30 2018-11-20 Shock Doctor, Inc. Mouthguard
USD917102S1 (en) 2016-09-30 2021-04-20 Shock Doctor, Inc. Mouthguard
US20180325625A1 (en) * 2017-05-11 2018-11-15 P & D Mouthguards, Inc. Mouthguard system
USD841257S1 (en) 2017-07-14 2019-02-19 Shock Doctor, Inc. Mouthguard
USD839485S1 (en) 2017-07-14 2019-01-29 Shock Doctor, Inc. Mouthguard
USD867673S1 (en) 2017-12-15 2019-11-19 Shock Doctor, Inc. Mouthguard
USD869774S1 (en) 2017-12-15 2019-12-10 Shock Doctor, Inc. Mouthguard
USD857301S1 (en) 2017-12-15 2019-08-20 Shock Doctor, Inc. Mouth guard
USRE48988E1 (en) 2017-12-15 2022-03-29 Shock Doctor, Inc. Mouthguard
USD854753S1 (en) 2017-12-15 2019-07-23 Shock Doctor, Inc. Mouthguard
US11179622B2 (en) 2018-01-10 2021-11-23 Shock Doctor, Inc. Mouthguard with tapered breathing channel
US11701568B2 (en) 2018-01-10 2023-07-18 Shock Doctor, Inc. Mouthguard with tapered breathing channel
US11273022B2 (en) 2018-02-13 2022-03-15 Emanate Biomedical, Inc. Oral appliance in a blockchain system
USD963950S1 (en) 2020-01-28 2022-09-13 Shock Doctor, Inc. Mouthguard

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