Patents by Inventor Lawson G. Wideman

Lawson G. Wideman 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).

  • Preparation of 2-methyl-1,5-diaminopentane
    Patent number: 3953511
    Abstract: There is disclosed a process for the preparation of 2-methyl-1,5-diaminopentane by a multi-stage hydrogenation of .alpha.-methylene glutaronitrile using as a catalyst a highly dispersed form of nickel in which the first stage hydrogenation is conducted at temperatures ranging from about 20.degree.C to about 50.degree.C and a hydrogen pressure of at least about 14 kilograms per square centimeter and the second stage hydrogenation is conducted at temperatures ranging from about 120.degree.C to about 140.degree.C using a hydrogen pressure of at least about 42 kilograms per square centimeter.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: April 27, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Kenneth J. Frech, Lawson G. Wideman
  • Selective hydrogenation of cyclopentadiene
    Patent number: 3937745
    Abstract: There is disclosed a method of selective hydrogenation of cyclopentadiene which comprises contacting cyclopentadiene with hydrogen in the presence of a catalyst comprising aluminum trialkyl and organonickel compounds. The preferred solvent system for the hydrogenation process is an aliphatic alcohol.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: February 10, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson G. Wideman, Henry R. Menapace