Patents by Inventor A. Norman Kresge

A. Norman Kresge 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).

  • Method of making alpha-olefin oligomers
    Patent number: 4045508
    Abstract: The trimer to tetramer ratio of an alpha-olefin oligomer is varied over a significant range in a continuous, multi-stage alpha-olefin oligomerization process including a first stage tank reactor and a final tube reactor by controlling the amount of conversion taking place in each stage. The multi-stage process is used to prepare various poly(l-decene) oligomer mixtures having different oligomer proportions for use as synthetic lubricants.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: August 30, 1977
    Assignee: Gulf Research & Development Company
    Inventors: Barrett L. Cupples, William J. Heilman, A. Norman Kresge
  • Method of oligomerizing 1-olefins
    Patent number: 4045507
    Abstract: The trimer to tetramer ratio of an alpha-olefin oligomer is varied over a significant range in a continuous, multi-stage alpha-olefin oligomerization process including a series of at least two flow-through tank reactors by controlling the amount of conversion taking place in each stage. The multi-stage process is used to prepare various poly(l-decene) oligomer mixtures having different oligomer proportions for use as synthetic lubricants.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: August 30, 1977
    Assignee: Gulf Research & Development Company
    Inventors: Barrett L. Cupples, William J. Heilman, A. Norman Kresge