Patents by Inventor Marlee A. Langham

Marlee A. Langham 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).

  • Euthanasia compositions
    Patent number: 5290775
    Abstract: An euthanasia solution based upon gamma-hydroxybutramide, a cardiotoxic amount of a compound selected from a chloroquine and quinacrine compound and lidocaine as a base or as a water soluble salt is described. The composition provides effective euthanasia without unwanted side effects, particularly in dogs, cats and horses. In addition, it does not contain substances controlled by the Federal Drug Control Administration.
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: March 1, 1994
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Donald C. Sawyer, Marlee A. Langham, Theodore M. Brody
  • Euthanasia compositions
    Patent number: 5281611
    Abstract: An euthanasia solution based upon gamma-hydroxybutramide and a cardiotoxic amount of a compound selected from chloroquine and quinacrine is described. The composition provides effective euthanasia without unwanted side effects.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: January 25, 1994
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Donald C. Sawyer, Theodore M. Brody, Marlee A. Langham