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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US437317425 Nov 19808 Feb 1983Method for protective magnetization of vessels
US512666927 Nov 199030 Jun 1992The United States of America as represented by the Administrator, of the National Aeronautics and Space AdministrationPrecision measurement of magnetic characteristics of an article with nullification of external magnetic fields
US512864324 Sep 19907 Jul 1992Method and apparatus for producing a region of low magnetic field
US522599911 Oct 19906 Jul 1993The Trustees of the University of PennsylvaniaMagnetic environment stabilization for effective operation of magnetically sensitive instruments
US536511523 Jun 199215 Nov 1994Stevens Institute of TechnologyMethod and apparatus for mitigation of magnetic fields from low frequency magnetic field sources
US546501230 Dec 19927 Nov 1995Active feedback system for suppression of alternating magnetic fields
US55860643 Nov 199417 Dec 1996The Trustees of the University of PennsylvaniaActive magnetic field compensation system using a single filter
US592013030 Oct 19976 Jul 1999ABB Research LtdOverhead line for electrical energy transmission
US595273410 Jun 199714 Sep 1999Fonar CorporationApparatus and method for magnetic systems
US596595630 Oct 199712 Oct 1999ABB Research Ltd.Overhead line for electric energy transmission
US679863213 Jun 200228 Sep 2004The United States of America as represented by the Secretary of the NavyPower frequency electromagnetic field compensation system
US683128128 Nov 200114 Dec 2004Nikon CorporationMethods and devices for detecting and canceling magnetic fields external to a charged-particle-beam (CPB) optical system, and CPB microlithography apparatus and methods comprising same
US742846918 Oct 200523 Sep 2008Wacom Co., Ltd.Three-dimensional-information detecting system and three-dimensional-information inputting device
US752531429 Apr 199828 Apr 2009Method and device for active compensation of magnetic and electromagnetic disturbance fields
US764935111 Feb 200519 Jan 2010Elekta AB (publ)Method for interference suppression in a measuring device