Patents by Inventor Martin L. Sassiver

Martin L. Sassiver 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).

  • Antitumor and antibacterial substituted disulfide derivatives prepared from compounds possessing a methyl-trithio group
    Patent number: 5606040
    Abstract: This disclosure describes disulfide analogs of the family of antibacterial and antitumor agents known collectively as the LL-E33288 complex.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: February 25, 1997
    Assignee: American Cyanamid Company
    Inventors: William J. McGahren, Martin L. Sassiver, George A. Ellestad
  • Substituted benz[cd]indol-2-(1H)-ones and use as antihypertensive agents
    Patent number: 5229411
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1, R.sup.2 and m are defined in the specification are provided. These compounds are useful as antihypertensive agents.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: July 20, 1993
    Assignee: American Cyanamid Company
    Inventors: Howard Newman, Martin L. Sassiver, Andrew S. Tomcufcik
  • Targeted forms of methyltrithio antitumor agents
    Patent number: 5053394
    Abstract: This disclosure describes a method for constructing carrier-drug conjugates from the family of methyltrithio antibacterial and antitumor agents.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: October 1, 1991
    Assignee: American Cyanamid Company
    Inventors: George A. Ellestad, William J. McGahren, Martin L. Sassiver, Philip R. Hamann, Lois M. Hinman, Janis Upeslacis
  • Antitumor amino acid and peptide derivatives of 1,4-bis(aminoalkyl and hydroxy-aminoalkyl)amino)-5,8-dihydroxyanthraquinones
    Patent number: 4732970
    Abstract: Antitumor amino acid and peptide derivatives of 1,4-bis[(aminoalkyl and hydroxyaminoalkyl)amino]-5,8-dihydroxyanthraquinones.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: March 22, 1988
    Assignee: American Cyanamid Company
    Inventors: Thomas L. Fields, Keith C. Murdock, Martin L. Sassiver, Janis Upeslacis
  • Derivatives of 3-(formylmethylthio)-propanoate
    Patent number: 4454336
    Abstract: This disclosure describes a novel process for the synthesis of 5-mercapto-1,2,3-thiadiazoles which are useful as intermediates in the preparation of antibacterial agents.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: June 12, 1984
    Assignee: American Cyanamid Company
    Inventors: William V. Curran, Martin L. Sassiver, James H. Boothe
  • 7-[D.alpha.-(Coumarin-3-carboxamido)arylacetamido]-cephalosporanic acids or salts
    Patent number: 4343938
    Abstract: This disclosure describes compounds of the class of 6-[D-.alpha.-(substituted-coumarin-3-carboxamido)phenylacetamido ]penicillanic acids which possess antimicrobial activity.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: August 10, 1982
    Assignee: American Cyanamid Company
    Inventors: Martin L. Sassiver, James H. Boothe
  • 6-[D-.alpha.-(Coumarin-3-carboxamido)arylacetamido]-penicillanic acids or salts
    Patent number: 4341703
    Abstract: This disclosure describes compounds of the class of 6-[D-.alpha.-(benzocoumarin-3-carboxamido)phenylacetamido] penicillanic acids which possess antimicrobial activity.
    Type: Grant
    Filed: September 23, 1981
    Date of Patent: July 27, 1982
    Assignee: American Cyanamid Company
    Inventors: Martin L. Sassiver, James H. Boothe
  • 6-[D-.alpha.-(Coumarin-3-carboxamido)arylacetamido]-penicillanic acids or salts
    Patent number: 4317774
    Abstract: This disclosure describes compounds of the class of 6-[D-.alpha.-(substituted-coumarin-3-carboxamido)phenylacetamido]penicilla nic acids which possess antimicrobial activity.
    Type: Grant
    Filed: March 24, 1978
    Date of Patent: March 2, 1982
    Assignee: American Cyanamid Company
    Inventors: Martin L. Sassiver, James H. Boothe