Patents by Inventor Evan S. Snyder

Evan S. Snyder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4608200
    Abstract: Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxo-carbonyl group which is used for amide formation with an antigen. The conjugate is then injected into a vertebrate for production of antisera which is isolated in conventional ways and find particular use in competitive protein binding assays.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: August 26, 1986
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Pyare L. Khanna, Evan S. Snyder, Prithipal Singh
  • Patent number: 4608252
    Abstract: Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxo-carbonyl group which is used for amide formation with an antigen. The conjugate is then injected into a vertebrate for production of antisera which is isolated in conventional ways and find particular use in competitive protein binding assays.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: August 26, 1986
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Pyare Khanna, Evan S. Snyder, Prithipal Singh
  • Patent number: 4544765
    Abstract: Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxocarbonyl group which is used for amide formation with an antigen. The conjugate is then injected into a vertebrate for production of antisera which is isolated in conventional ways and find particular use in competitive protein binding assays.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: October 1, 1985
    Assignee: Syra Company
    Inventors: Pyare Khanna, Evan S. Snyder, Prithipal Singh
  • Patent number: 4489156
    Abstract: Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxocarbonyl group which is used for amide formation with an antigen. The conjugate is then injected into a vertebrate for production of antisera which is isolated in conventional ways and find particular use in competitive protein binding assays.
    Type: Grant
    Filed: April 23, 1981
    Date of Patent: December 18, 1984
    Assignee: Syva Company
    Inventors: Pyare Khanna, Evan S. Snyder, Prithipal Singh
  • Patent number: 4489157
    Abstract: Chloramphenicol derivatives are provided for use in the preparing of antigen conjugates for the production of antibodies specifically for chloramphenicol. Specifically, the aryl amino group is derivatized to introduce a non-oxocarbonyl group which is used for amide formation with an antigen. The conjugate is then injected into a vertebrate for production of antisera which is isolated in conventional ways and finds particular use in competitive protein binding assays.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: December 18, 1984
    Assignee: Syva Company
    Inventors: Pyare L. Khanna, Evan S. Snyder, Prithipal Singh