Patents by Inventor David J. Harrigan

David J. Harrigan 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).

  • DIRECT CONVERSION OF ESTERS TO CARBOXYLATES
    Publication number: 20230406806
    Abstract: A calcium carboxylate is prepared by reacting water, calcium oxide, and a compound of formula (I): wherein R is a C1-C3 alkyl and R1 is a C1 or C2 alkyl. The reaction solution is heated to remove an amount of a co-product from the reaction solution. The calcium carboxylate may be recovered in a solid form from the reaction solution.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 21, 2023
    Applicant: NIACET CORPORATION
    Inventors: Kelly BRANNEN, David J. Harrigan, Donal S. Tunks, Stanley A. Sojka
  • DIRECT CONVERSION OF ESTERS TO CARBOXYLATES
    Publication number: 20220081384
    Abstract: A calcium carboxylate is prepared by reacting water, calcium oxide, and a compound of formula (I): wherein R is a C1-C3 alkyl and R1 is a C1 or C2 alkyl. The reaction solution is heated to remove an amount of a co-product from the reaction solution. The calcium carboxylate may be recovered in a solid form from the reaction solution.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 17, 2022
    Applicant: Niacet Corporation
    Inventors: Kelly Brannen, David J. Harrigan, Donal S. Tunks, Stanley A. Sojka
  • Method of vapor coating phosphor particles
    Patent number: 4515827
    Abstract: Red cathode ray phosphors are coated with a vapor deposited layer of cadmium selenide in order to achieve controlled color shifts in the light output of the phosphors. Such coated phosphors are especially suited for color television and monitor applications.
    Type: Grant
    Filed: June 17, 1982
    Date of Patent: May 7, 1985
    Assignee: GTE Products Corporation
    Inventors: Robert E. Dodds, David J. Harrigan
  • Coated phosphor particles, method, and cathode ray tube screen
    Patent number: 4398119
    Abstract: Red cathode ray phosphors are coated with a vapor deposited layer of cadmium selenide in order to achieve controlled color shifts in the light output of the phosphors. Such coated phosphors are especially suited for color television and monitor applications.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: August 9, 1983
    Assignee: GTE Products Corporation
    Inventors: Robert E. Dodds, David J. Harrigan