Patents by Inventor Antoinette Drahus

Antoinette Drahus 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).

  • Removal of aldehyde impurity by reactive polystyrene resini
    Patent number: 7563807
    Abstract: A purification method in the preparation of a substituted 8-arylquinoline, wherein the aryl group at the 8-position contains a substituent substituted-alkenyl group, utilizes a polystyrene-based sulfonylhydrazine reactive resin to remove an aldehyde impurity.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: July 21, 2009
    Assignee: Merck & Co. Inc.
    Inventors: Mirlinda Biba, Paul Compton Collins, Christopher Joseph Welch, David A. Conlon, Antoinette Drahus
  • Removal of aldehyde impurity by reactive polystyrene resini
    Publication number: 20070054941
    Abstract: A purification method in the preparation of a substituted 8-arylquinoline, wherein the aryl group at the 8-position contains a substituent substituted-alkenyl group, utilizes a polystyrene-based sulfonylhydrazine reactive resin to remove an aldehyde impurity.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 8, 2007
    Inventors: Mirlinda Biba, Paul Collins, Christopher Welch, David Conlon, Antoinette Drahus
  • Process for making substituted 8-arylquinolinium benzenesulfonate
    Patent number: 6835837
    Abstract: A substituted 8-aryl quinoline and its benzenesulfonic acid salt is synthesized.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: December 28, 2004
    Assignee: Merck & Co. Inc.
    Inventors: Richard Desmond, David A. Conlon, Antoinette Drahus, Guo-Jie Ho, Brenda Pipik, Carl Leblond, Anant Vailaya
  • Process for making substituted 8-arylquinolinium benzenesulfonate
    Publication number: 20040044213
    Abstract: A substituted 8-aryl quinoline and its benzenesulfonic acid salt is synthesized.
    Type: Application
    Filed: May 15, 2003
    Publication date: March 4, 2004
    Inventors: Richard Desmond, David A. Conlon, Antoinette Drahus, Guo-Jie Ho, Brenda Pipik, Carl Leblond, Anant Vailaya
  • Process for making substituted 8-arylquinolinium benzenesulfonate
    Publication number: 20030097001
    Abstract: A substituted 8-aryl quinoline and its benzenesulfonic acid salt is synthesized.
    Type: Application
    Filed: December 18, 2001
    Publication date: May 22, 2003
    Inventors: Richard Desmond, David A. Conlon, Antoinette Drahus, Guo-Jie Ho, Brenda Pipik, Carl Leblond, Anant Vailaya