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1-10 of 95 patent results

Lateral flow chromatographic binding assay device

U.S. Patent US4956302 | Filed: 05/15/1989 | Issued: 09/11/1990
Assignee(s): Abbott Laboratories | Inventor(s): Julian Gordon + 1 | Agent(s): Jeffrey S. Sharp | Examiner(s): Robert J. Warden
The present invention relates to improved specific binding assay devices comprising a chromatographic medium including a reaction site at which a specific binding reagent is immobilized, a sample a...

Apparatus and method of analyzing nucleic acid molecules

U.S. Patent US4870004 | Filed: 06/08/1984 | Issued: 09/26/1989
Assignee(s): Autoseq, Inc. | Inventor(s): Thomas J. Conroy + 1 | Agent(s): Limbach, Limbach & Sutton | Examiner(s): Robert J. Warden
Apparatus and method of sequencing nucleic acid molecules, including DNA and RNA molecules. Several copies of the molecules are labeled with a radioactive tracer and divided into separate groups. T...

Compound and its use

U.S. Patent US6333198 | Filed: 03/10/1999 | Issued: 12/25/2001
Assignee(s): Glaxo Wellcome, Inc. | Inventor(s): Lorraine Mary Edmeades + 4 | Agent(s): Nixon & Vanderhye | Examiner(s): Arlen Soderquist
A method of testing the purity or stability to degradation of a sample of lamotrigine or a pharmaceutical dosage form comprising lamotrigine comprises assaying the said sample for the presence of a...

Thin-layer chromatographic method for the separation of enantiomers

U.S. Patent US4590167 | Filed: 07/25/1984 | Issued: 05/20/1986
Assignee(s): Degussa Aktiengesellschaft | Inventor(s): Kurt Gunther + 2 | Agent(s): Cooper, Dunham, Clark, Griffin & Moran | Examiner(s): John Adee
Thin-layer chromatography is employed to separate enantiomers of the general formula, ##STR1## in which C* represents an asymmetric center and the substituents R.sup.1, R.sup.2, and R.sup.3 are suc...

Methods and devices for obtaining and assaying mammary fluid samples for evaluating breast diseases, including cancer

U.S. Patent US6287521 | Filed: 02/20/1998 | Issued: 09/11/2001
Assignee(s): Atossa Healthcare, Inc. | Inventor(s): Steven C. Quay + 1 | Agent(s): Townsend and Townsend and Crew LLP | Examiner(s): Long V. Le
Non-invasive methods are provided for obtaining biological samples of mammary fluid or mammary fluid components by administering oxytocin to a patient to stimulate expression of mammary fluid. Duri...

Process for the visualization of substance stains on layer chromatograms

U.S. Patent US5106757 | Filed: 06/27/1991 | Issued: 04/21/1992
Assignee(s): LTS Lohmann Therapie-Systeme GmbH & Co. KG | Inventor(s): Walter Muller | Agent(s): Sprung Horn Kramer & Woods | Examiner(s): Hill, Jr.; Robert J.
The present invention relates to a process for the visualization of substance stains on dry layer chromatograms without further addition of a mobile phase, which device has foil of at least one lay...

Enhanced chromatography using multiphoton detection

U.S. Patent US6225132 | Filed: 12/10/1998 | Issued: 05/01/2001
Assignee(s): BioTraces, Inc. | Inventor(s): Andrzej K. Drukier + 1 | Agent(s): Venable + 1 | Examiner(s): Long V. Le
A method for detecting an analyte of interest present in a mixture at an ultralow concentration includes selecting a radioactive derivatizing agent comprising a multiphoton-emitting radioisotope mo...

Sample collector and assay device and method for its use

U.S. Patent US4624929 | Filed: 12/03/1984 | Issued: 11/25/1986
Assignee(s): Syntex (U.S.A.) Inc. | Inventor(s): Edwin F. Ullman | Agent(s): Theodore J. Leitereg | Examiner(s): David L. Lacey
A device is disclosed for collecting a liquid sample and diluting the liquid sample by virtue of being adapted for use with a container having a volume of diluting liquid. The device comprises a ho...

Self-performing immunochromatographic device

U.S. Patent US5075078 | Filed: 10/05/1989 | Issued: 12/24/1991
Assignee(s): Abbott Laboratories | Inventor(s): Eugene W. Osikowicz + 4 | Agent(s): Daniel R. Curry | Examiner(s): Robert J. Warden
Improved chromatographic strip binding assay devices are provided for determining the presence or amount of an analyte present in a patient sample. Assay label reagents interact with capture reagen...

Process for specific binding assay for measuring the amount of analyte in a liquid test sample

U.S. Patent US6218134 | Filed: 04/26/1996 | Issued: 04/17/2001
Assignee(s): Mochida Pharmaceutical Co., Ltd. | Inventor(s): Tadakazu Yamauchi + 2 | Agent(s): Birch, Stewart, Kolasch & Birch, LLP | Examiner(s): Christopher L. Chin
A specific binding assay process which is useful for quick qualitative or quantitative measurement and which can be used for various purposes, and a specific binding assay device suitable for the p...