Patents Assigned to TechAmerica Group, Inc.
  • Stabilized polyacrylamide gels and system for SDS electrophoresis
    Patent number: 4481094
    Abstract: An improved polyacrylamide gel in a gel buffer, a system and method for conducting discontinuous sodium dodecyl sulfate electrophoresis is disclosed. The improved gel involves the use of a salt of 2-amino-2-methyl-1,3-propanediol at a pH of from 6.4 to 7.3 The improved process involves the use of the gel in combination with 2-amino-2-methyl-1,3-propanediol taurine as an electrolyte buffer at a pH of about 8.0 to 10.0.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: November 6, 1984
    Assignee: TechAmerica Group, Inc.
    Inventors: Aurora Fernandez de Castro, Jerry L. Neff
  • Electrophoretic separation of isoenzymes utilizing a stable polyacrylamide system
    Patent number: 4415655
    Abstract: A method for separating isoenzymes is disclosed. The method involves polyacrylamide gel electrophoresis in a buffer solution of a salt of 2-amino-2-methyl-1,3-propanediol at a pH of about 6.4 to 7.3 and an electrolyte buffer of 2-amino-2-methyl-1,3-propanediol taurine at a pH of about 8.0 to 10.0. After separation of the isoenzymes, the amount of individual isoenzymes present is determined.
    Type: Grant
    Filed: May 17, 1982
    Date of Patent: November 15, 1983
    Assignee: TechAmerica Group, Inc.
    Inventors: Aurora F. de Castro, Surendra K. Gupta
  • Microtiter well holder
    Patent number: D288604
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: March 3, 1987
    Assignee: TechAmerica Group, Inc.
    Inventors: Scott E. Winston, Wai S. Ma