Patents by Inventor William James McGahren

William James McGahren 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).

  • Process for preparing targeted forms of methyltrithio antitumor agents
    Patent number: 5770701
    Abstract: This disclosure describes a method for constructing targeting agent drug conjugates from the family of methyltrithio antibacterial and antitumor agents.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: June 23, 1998
    Assignee: American Cyanamid Company
    Inventors: William James McGahren, Martin Leon Sassiver, George A. Ellestad, Philip R. Hamann, Lois M. Hinman, Janis Upeslacis
  • Antitumor and antibacterial substituted disulfide derivatives prepared from compounds possessing a methlytrithio group
    Patent number: 5770710
    Abstract: A process is described for producing substituted disulfide analogs of the family of antibacterial and antitumor agents known collectively as the LL-E33288 complex.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 23, 1998
    Assignee: American Cyanamid Company
    Inventors: William James McGahren, Martin Leon Sassiver, George A. Ellestad
  • Novel 16 hydroxy 15-deoxy-5-cis-prostenoic acids and esters
    Patent number: 4107441
    Abstract: This disclosure describes certain hydroxy substituted 15-deoxy-5-cis-prostenoic acids and esters useful as hypotensive agents, anti-ulcer agents, bronchodilators, anti-microbial agents, anticonvulsants, or as intermediates.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: August 15, 1978
    Assignee: American Cyanamid Company
    Inventors: Middleton Brawner Floyd, Jr., Martin Joseph Weiss, William James McGahren, Robert Eugene Schaub
  • Derivatives of 9-hydroxy-13-trans-prostenoic acid
    Patent number: 4061672
    Abstract: This disclosure describes certain 15-deoxy prostanoic acid derivatives having a hydroxy group further along in the beta-chain, useful as bronchodilators, hypotensive agents, anti-ulcer agents, or as intermediates.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: December 6, 1977
    Assignee: American Cyanamid Company
    Inventors: Middleton Brawner Floyd, Jr., William James McGahren, Robert Eugene Schaub, Martin Joseph Weiss
  • Hydroxylated 15-deoxy derivatives of 9-hydroxy-13-trans-prostenoic acid
    Patent number: 3950406
    Abstract: This disclosure describes certain 15-deoxy prostanoic acid derivatives having a hydroxy group further along in the beta-chain, useful as bronchodilators, hypotensive agents, anti-ulcer agents, or as intermediates.
    Type: Grant
    Filed: June 19, 1974
    Date of Patent: April 13, 1976
    Assignee: American Cyanamid Company
    Inventors: Middleton Brawner Floyd, Jr., William James McGahren, Robert Eugene Schaub, Martin Joseph Weiss
  • Hydroxylated 15-deoxy derivatives of 9-hydroxyl-13-trans-prostenoic acid
    Patent number: RE29469
    Abstract: This disclosure describes certain 15-deoxy prostanoic acid derivatives having a hydroxy group further along in the beta-chain, useful as bronchodilators; hypotensive agents, anti-ulcer agents, or as intermediates.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: November 8, 1977
    Assignee: American Cyanamid Company
    Inventors: Middleton Brawner Floyd, Jr., William James McGahren, Robert Eugene Schaub, Martin Joseph Weiss