Patents by Inventor Chengrong Wang

Chengrong Wang 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: 5852199
    Abstract: The present invention provides a novel carbamazepine hydrazide compound suitable for covalent attachment to a polymer particle reagent, having the general formula ##STR1## The present invention provides a novel carbamazepine acid compound suitable for attachment to proteins for the production of carbamazepine immunogens. The carbamazepine antigen of the present invention has the following general structure: ##STR2## where X is C.dbd.O, CH.sub.2 or SO.sub.2 ; Y is C.dbd.O, CH.sub.2, SO.sub.2 ; R is an alkyl and P is a protein or a hapten.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 22, 1998
    Assignee: Dade Behring Inc.
    Inventor: Chengrong Wang
  • Patent number: 5851779
    Abstract: The present invention provides a novel carbamazepine hydrazide compound suitable for covalent attachment to a polymer particle reagent, having the general formula ##STR1## The present invention also provides a novel carbamazepine acid compound suitable for attachment to proteins for the production of carbamazepine immunogens. The carbamazepine antigen of the present invention has the following general structure: ##STR2## where X is C=O, CH.sub.2 or SO.sub.2 ; Y is C=O, CH.sub.2, SO.sub.2 ; R is an alkyl and P is a protein or a hapten.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 22, 1998
    Assignee: Dade Behring Inc.
    Inventor: Chengrong Wang
  • Patent number: 5830768
    Abstract: The present invention provides a novel carbamazepine hydrazide compound suitable for covalent attachment to a polymer particle reagent, having the general formula ##STR1## The present invention also provides a novel carbamazepine acid compound suitable for attachment to proteins for the production of carbamazepine immunogens. The carbamazepine antigen of the present invention has the following general structure: ##STR2## where X is C.dbd.O, CH.sub.2 or SO.sub.2 ; Y is C.dbd.O, CH.sub.2, SO.sub.2 ; R is an alkyl and P is a protein or a hapten.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: November 3, 1998
    Assignee: Dade Behring Inc.
    Inventor: Chengrong Wang
  • Patent number: 5821342
    Abstract: The present invention provides a novel carbamazepine hydrazide compound suitable for covalent attachment to a polymer particle reagent, having the general formula ##STR1## The present invention also provides a novel carbamazepine acid compound suitable for attachment to proteins for the production of carbamazepine immunogens. The carbamazepine antigen of the present invention has the following general structure: ##STR2## where X is C=O, CH.sub.2 or SO.sub.2 ; Y is C=O, CH.sub.2, SO.sub.2 ; R is an alkyl and P is a protein or a hapten.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: October 13, 1998
    Assignee: Dade Behring Inc.
    Inventor: Chengrong Wang
  • Patent number: 5688944
    Abstract: The present invention provides a novel carbamazepine hydrazide compound suitable for covalent attachment to a polymer particle reagent, having the general formula ##STR1## The present invention also provides a novel carbamazepine acid compound suitable for attachment to proteins for the production of carbamazepine immunogens. The carbamazepine antigen of the present invention has the following general structure: ##STR2## where X is C.dbd.O, CH.sub.2 or SO.sub.2 ; Y is C.dbd.O, CH.sub.2, SO.sub.2 ; R is an alkyl and P is a protein or a hapten.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 18, 1997
    Assignee: Dade International Inc.
    Inventor: Chengrong Wang
  • Patent number: 5522978
    Abstract: This invention relates to sodium-selective agents which are monensin amide derivatives and sodium-selective electrodes having sodium-selective membranes containing such monensin amide derivatives. This invention further relates to multisensor flow assemblies incorporating such a monensin amide derivative in a sodium-selective electrode.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: June 4, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Salvatore J. Pace, Chengrong Wang