Patents by Inventor Martin Lee Bremmer

Martin Lee Bremmer 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).

  • Preparation of sulfo-N-hydroxy succinimide salts
    Patent number: 6407263
    Abstract: The salt of a sulfonated succinic acid is cyclized, then converted to novel sulfonated hydroxamic acids by reaction with hydroxylamine (which is added or formed in situ), and the novel hydroxamic acid is then cyclized to the sulfo-N-hydroxysuccinimide salt. This synthetic procedure is simple, direct, and more rapid than present procedures for synthesis of the succinimide. Novel sulfo-hydroxamic acid intermediates are formed during this procedure.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: June 18, 2002
    Assignee: Pierce Chemical Company
    Inventors: Marty Carey Wilkes, Martin Lee Bremmer
  • Method for the preparation of sulfo-N-hydroxy succinimade salts
    Patent number: 5942628
    Abstract: The salt of a sulfonated succinic acid is cyclized, then converted to novel sulfonated hydroxamic acids by reaction with hydroxylamine (which is added or formed in situ), and the novel hydroxamic acid is then cyclized to the sulfo-N-hydroxysuccinimide salt. This synthetic procedure is simple, direct, and more rapid than present procedures for synthesis of the succinimide. Novel sulfo-hydroxamic acid intermediates are formed during this procedure.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: August 24, 1999
    Assignee: Pierce Chemical Company
    Inventors: Marty Carey Wilkes, Martin Lee Bremmer
  • Preparation of sulfo-N-hydroxysuccinimide salts
    Patent number: 5892057
    Abstract: The salt of a sulfonated succinic acid is cyclized, then converted to novel sulfonated hydroxamic acids by reaction with hydroxylamine (which is added or formed in situ), and the novel hydroxamic acid is then cyclized to the sulfo-N-hydroxysuccinimide salt. This synthetic procedure is simple, direct, and more rapid than present procedures for synthesis of the succinimide. Novel sulfo-hydroxamic acid intermediates are formed during this procedure.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: April 6, 1999
    Assignee: Pierce Chemical Company
    Inventors: Marty Carey Wilkes, Martin Lee Bremmer
  • Preparation of sulfo-N- hydroxy succinimide salts with intermediate formation of diester
    Patent number: 5872261
    Abstract: A process is described for rapid preparation of pure sulfo-N-hydroxysuccinimides. The process may comprise the steps of:a) esterifying a sulfo-succinic acid to form a diester first product, andb) reacting said diester first product with hydroxylamine to form a sulfo-N-hydroxy succinimide.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: February 16, 1999
    Assignee: Pierce Chemical Company
    Inventors: Martin Lee Bremmer, Marty Carey Wilkes