Patents by Inventor Ernest F. Levon

Ernest F. Levon 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).

  • Sodium 3-[[[2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl]-amino]carbonyl]-2-pyrid inecarboxylic acid and related compounds labeled with technetium-99m
    Patent number: 4193979
    Abstract: Sodium 3-[[[2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl]-amino]carbonyl]-2-pyridin ecarboxylic acid and related compounds which are labeled with radioactive technetium-99m are described as well as their preparations. These novel complexes are useful by reason of their utility as radiopharmaceutical imaging agents. Particularly, these complexes are useful as gallbladder and liver imaging agents.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: March 18, 1980
    Assignee: G. D. Searle & Co.
    Inventors: Patricia Frank, Stephen Kraychy, Ernest F. LeVon
  • N-[2-(nitro-1-imidazolyl)ethyl]naphthal imides
    Patent number: 3997572
    Abstract: Imides having a nitroimidazolylethyl group as a N-substituent are described herein. They are anti-bacterial and anti-protozoal agents. The compounds are prepared by the reaction of the appropriate imide with the chloroethylimidazole or with the tosylate or mesylate of the corresponding hydroxyethyl compound.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: December 14, 1976
    Assignee: G. D. Searle & Co.
    Inventors: John W. Cusic, Ernest F. Levon
  • 1-Azidoalkylimidazoles
    Patent number: 3962274
    Abstract: Preparation and the antimicrobial and antihypertensive properties of 1-azidoalkylimidazoles and their salts are disclosed.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: June 8, 1976
    Assignee: G. D. Searle & Co.
    Inventor: Ernest F. Levon