Patents by Inventor David F. Long

David F. Long 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).

  • Stable pharmaceutical composition of terfenadine and ibuprofen
    Patent number: 5691352
    Abstract: The present invention is directed to a chemically stable pharmaceutical composition containing ibuprofen in combination with terfenadine, wherein the oxidation of terfenadine to terfenadone is prevented by the presence in the composition of an .alpha.-hydroxy carboxylic acid.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: November 25, 1997
    Assignee: Merrell Pharmaceuticals Inc.
    Inventors: Keith D. Ertel, David F. Long
  • Pharmaceutical compositions for piperidinoalkanol-ibuprofen combination
    Patent number: 4999226
    Abstract: The present invention is directed to a multi-layered tablet containing an ibuprofen layer, a piperidino-alkanol antihistamine layer, and a layer or layers containing conventional pharmaceutical excipients which is interspersed between the ibuprofen and piperidino-alkanol layer and serves to physically separate them. This tablet solves the problems associated with the physical and chemical incompatibilities between ibuprofen and the piperidinoalkanol antihistamines.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: March 12, 1991
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Herbert Schock, David F. Long, William R. Nadler
  • Container cap
    Patent number: D277736
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: February 26, 1985
    Assignee: Pacer Technology & Resources, Inc.
    Inventor: David F. Long