Patents by Inventor Jennifer R. Knight

Jennifer R. Knight 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).

  • Process for the manufacture of 2,2,4,4-tetramethylcyclobutanediol
    Patent number: 5258556
    Abstract: Disclosed is a novel process for the manufacture of 2,2,4,4 tetramethylcyclobutane 1,3 diol commencing with the pyrolysis of isobutyric anhydride to produce dimethylketene. Dimethylketene is absorbed into 2,2,4,4 tetramethylcyclobutane 1,3 dione which function as the process solvents for subsequent dimerization of the dimethylketene to 2,2,4,4-tetramethylcyclobutane-1,3 -dione followed by the catalytic hydrogenation of the dione to the diol product.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: November 2, 1993
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Bruce L. Gustafson, Jennifer R. Knight
  • Process for the manufacture of 2,2,4,4-tetramethycyclobutanediol
    Patent number: 5169994
    Abstract: Disclosed is a novel process for the manufacture of 2,2,4,4-tetramethylcyclobutanediol commencing with the pyrolysis of isobutyric anhydride to produce dimethylketene. Dimethylketene is absorbed into certain carboxylate ester solvents which function as the process solvents for subsequent dimerization of the dimethylketene to 2,2,4,4-tetramethylcyclobutanedione followed by the catalytic hydrogenation of the dione to the diol product.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: December 8, 1992
    Assignee: Eastman Kodak Company
    Inventors: Charles E. Sumner, Jr., Bruce L. Gustafson, Jennifer R. Knight