|
| US4588696 | 17 Feb 1983 | 13 May 1986 | | Pellet process for the detection of formaldehyde and/or glutaraldehyde |
| US4956300 | 16 Oct 1984 | 11 Sep 1990 | Helena Laboratories Corporation | Aid for determining the presence of occult blood, method of making the aid, and method of using the aid |
| US5081040 | 6 Jun 1989 | 14 Jan 1992 | Helena Laboratories Corporation | Composition and kit for testing for occult blood in human and animal excretions, fluids, or tissue matrixes |
| US5196167 | 9 May 1991 | 23 Mar 1993 | Helena Laboratories Corporation | Fecal occult blood test product with positive and negative controls |
| US5217874 | 9 May 1991 | 8 Jun 1993 | Helena Laboratories Corporation | Fecal occult blood test product with positive and negative controls |
| US5273888 | 29 Apr 1988 | 28 Dec 1993 | Helena Laboratories Corporation | Chemical test kit and method for determining the presence of blood in a specimen and for verifying the effectiveness of the chemicals |
| US5702913 | 12 Jun 1989 | 30 Dec 1997 | Helena Laboratories Corporation | Chromgen-reagent test system |
| US7150995 | 16 Jan 2004 | 19 Dec 2006 | Metrika, Inc. | Methods and systems for point of care bodily fluid analysis |
| US7635597 | 19 Apr 2004 | 22 Dec 2009 | Bayer HealthCare LLC | Dry reagent particle assay and device having multiple test zones and method therefor |
