Patents by Inventor David A. Conlon

David A. Conlon 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
  • 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
  • Process for the preparation of 1-(thiomethyl)-cyclopropaneacetic acid
    Patent number: 5523477
    Abstract: The present invention provides a novel process for the preparation of 1,1-cyclopropanedimethanol cyclic sulfite which comprises: (a) contacting 1,1-cyclopropanedimethanol with dialkylsulfite in the presence of a base; and (b) removing from the reaction mixture the alcohol reaction by-product. This process is incorporated in the additional novel processes for preparing 1-(hydroxymethyl)cyclopropaneacetonitrile and 1-(thiomethyl)cyclopropaneacetic acid.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: June 4, 1996
    Assignee: Merck & Co., Inc.
    Inventors: Steven King, Brenda Pipik, David A. Conlon
  • Method for making cationically polymerizable aromatic polypropenyl ethers
    Patent number: 4864054
    Abstract: A method is provided for making cationically polymerizable aromatic polypropenylethers and to the aromatic polypropenylethers made thereby. Aromatic polyalkylene glycol prepared from the corresponding polyphenol is reacted with an allylhalide to produce aromatic polyallylether which is thereafter isoemrized to the corresponding cationically polymerizable aromatic polypropenylether.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: September 5, 1989
    Assignee: General Electric Company
    Inventors: James V. Crivello, David A. Conlon