Patents Assigned to Specialty Assays, Inc.
  • ENZYMATIC DETERMINATION OF LITHIUM IONS USING PHOSPHOGLUCOMUTASE
    Publication number: 20130071871
    Abstract: Kits and methods for measuring lithium ions using phosphoglucomutase are disclosed.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 21, 2013
    Applicant: SPECIALTY ASSAYS, INC.
    Inventors: Richard A. Kaufman, Peter I. Màthé
  • Use of phosphonazo III for the measurement of calcium, magnesium and sodium in analytical samples
    Patent number: 7288414
    Abstract: Novel reagent formulations and methods are described for the use of phosphonazo III to measure calcium, magnesium and sodium in biological fluids.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: October 30, 2007
    Assignee: Specialty Assays, Inc.
    Inventor: Richard A. Kaufman
  • Use of nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucliotide phosphate (NADP) analogs to measure enzyme activities metabolites and substrates
    Patent number: 6380380
    Abstract: Kits and methods for measuring enzyme activities and metabolites using NAD analogs and NADP analogs are disclosed. The analogs can be used as replacements for NAD and NADP cofactors in analytical procedures. Preferred aspects of the invention include kits containing the NAD analogs and NADP analogs for use in the measurement of ethanol, lactic acid, 3-hydroxybutyric acid, glucose, glycerol, triglycerides, alpha-glycerophosphate, bile acids, creatine kinase activity, glucose-6-phosphate dehydrogenase activity and lactic acid dehydrogenase activity in analytical samples.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: April 30, 2002
    Assignee: Specialty Assays, Inc.
    Inventor: Richard A. Kaufman
  • Use of NADPH and NADH analogs in the measurement of enzyme activities and metabolites
    Patent number: 5801006
    Abstract: Kits and methods for measuring enzyme activities and metabolites using NADH and NADPH analogs are disclosed. The analogs have extended stability in aqueous solutions and can used as replacements for NADH or NADPH cofactors in analytical procedures. Preferred aspects of the invention include kits containing the NADH and NADPH analogs for use in the measurement of ALT activity, AST activity, Urea, Ammonia, Salicylate, Triglycerides, Pyruvic Acid, Sorbitol Dehydrogenase activity, 5'-Nucleotidase activity, Creatine Kinase activity, 2,3-Diphosphoglyceric Acid, Adenosine 5'-triphosphate, .alpha.-Hydroxybutyrate Dehydrogenase activity, Lactate Dehydrogenase activity and the Carbon Dioxide content in analytical samples.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: September 1, 1998
    Assignee: Specialty Assays, Inc.
    Inventor: Richard A. Kaufman