Patents by Inventor David A. Jones, Jr.

David A. Jones, Jr. 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: 4722922
    Abstract: The invention relates to tetrapeptides of the formula I: ##STR1## which are useful as renin inhibition/antihypertensive agents.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: February 2, 1988
    Assignee: G. D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., David A. Jones, Jr., Robert H. Mazur, James M. Schlatter
  • Patent number: 4603121
    Abstract: The invention relates to novel enkephalin analogs of the formula: ##STR1## which are useful as analgesic agents.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: July 29, 1986
    Assignee: G. D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., David A. Jones, Jr., Robert H. Mazur, James M. Schlatter
  • Patent number: 4495178
    Abstract: The invention relates to novel enkephalin analogs of the formula: ##STR1## which are useful as analgesic agents.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: January 22, 1985
    Assignee: G. D. Searle & Co.
    Inventors: Donald W. Hansen, Jr., David A. Jones, Jr., Robert H. Mazur, James M. Schlatter
  • Patent number: 4144228
    Abstract: Methionine.sup.5 -enkephalin sulfoxides and sulfones having agonist activity at opiate receptors are disclosed herein. These sulfoxides and sulfones are useful as analgesics, non-addicting narcotic antagonists and anti-diarrheal agents.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: March 13, 1979
    Assignee: G. D. Searle & Co.
    Inventors: David A. Jones, Jr., James M. Schlatter
  • Patent number: 4092304
    Abstract: Analogs of methionine.sup.5 -enkephalin and leucine.sup.5 -enkephalin wherein the L-phenylalanyl residue in position 4 has been substituted by various other amino acid residues are disclosed herein. These analogs exhibit agonist activity at opiate receptor sites and are thus useful as analgesics, non-addicting narcotic antagonists and anti-diarrheal agents.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: May 30, 1978
    Assignee: G. D. Searle & Co.
    Inventors: David A. Jones, Jr., James M. Schlatter, Richard A. Mikulec, Judith A. Reuter
  • Patent number: 4028319
    Abstract: Analogs of enkephalin having agonist activity at opiate receptors are disclosed herein. These analogs are useful as analgesics, non-addicting narcotic antagonists and anti-diarrheal agents.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: June 7, 1977
    Assignee: G. D. Searle & Co.
    Inventors: David A. Jones, Jr., James M. Schlatter, Richard A. Mikulec, Judith A. Reuter, Robert H. Mazur