Patents by Inventor Robert M. Hanson

Robert M. Hanson 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).

  • Catalytic asymmetric epoxidation
    Patent number: 4900847
    Abstract: Improved method for epoxidation of ethylenic alcohols is provided employing catalytic amounts of a titanium-glycol catalyst and a peroxide under mild conditions which provide for the continuous maintenance of an anhydrous medium during catalyst formation and during the course of the reaction. Conveniently, molecular sieves may be employed.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: February 13, 1990
    Assignee: Massachusetts Institute of Technology
    Inventors: Robert M. Hanson, Soo Y Ko, Karl B. Sharpless
  • Gas generator with regulated current source
    Patent number: 4424105
    Abstract: An improved apparatus for gas generators producing oxygen and hydrogen or oxyhydrogen gas, the apparatus comprising a solid state current limiting circuit in combination with an assembly of electrolytic cells. The current-limiting circuit replaces the variable auto-transformer commonly heretofore employed for adjusting cell current and regulates cell current.
    Type: Grant
    Filed: August 5, 1982
    Date of Patent: January 3, 1984
    Assignee: Henes Products Corp.
    Inventor: Robert M. Hanson