Patents by Inventor James B. Gallivan

James B. Gallivan 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).

  • 1,4-disubstituted-2,3,5,6-tetrahyddroxy-1,4-diphosphorinanes and their oxides or sulfides
    Patent number: 5149878
    Abstract: Various 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, flame-retarded compositions of matter containing them and froth flotation processes therewith, are disclosed.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: September 22, 1992
    Inventors: Allan J. Robertson, James B. Gallivan
  • 1,4-Disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinane and their oxides or sulfides
    Patent number: 5077437
    Abstract: Various 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, flame-retarded compositions of matter containing them and froth flotation processes therewith, are disclosed.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: December 31, 1991
    Assignee: American Cyanamid
    Inventors: Allan J. Robertson, James B. Gallivan
  • 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes and their oxides or sulfides and their use in froth flotation
    Patent number: 4968416
    Abstract: Various 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, flame-retarded compositions of matter containing them and froth flotation processes therewith, are disclosed.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: November 6, 1990
    Assignee: American Cyanamid Company
    Inventors: Allan J. Robertson, James B. Gallivan
  • 1,4-Disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes and their oxides or sulfides
    Patent number: 4929393
    Abstract: Various 1,4-disubstituted-2,3,5,6-tetrohydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, and flame-retarded compositions of matter containing them, are disclosed.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: May 29, 1990
    Assignee: Cyanamid Canada Inc.
    Inventors: Allan J. Robertson, James B. Gallivan
  • 1,4-Disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes and their oxides or sulfides
    Patent number: 4855507
    Abstract: Various 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, and flame-retarded compositions of matter containing them, are disclosed.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: August 8, 1989
    Assignee: American Cyanamid Company
    Inventors: Allan J. Robertson, James B. Gallivan