Patents by Inventor Craig R. Williams

Craig R. Williams 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).

  • Propoxylation and reductive alkylation of diethylenetriamine
    Patent number: 5430190
    Abstract: A one-pot reaction process for the coproduction of two polyurethane catalysts which comprises reacting excess diethylenetriamine (DETA) in a reaction vessel with propylene oxide in the presence of a hydrogenation catalyst under conditions and for a period of time to essentially completely react the propylene oxide to give a mixture of DETA and N-2-hydroxypropyldiethylenetriamine (HPDETA), adding formaldehyde and hydrogen to the reaction vessel, reacting the DETA and HPDETA with the formaldehyde and hydrogen under conditions to effect permethylation of the DETA and HPDETA to afford N,N,N',N',N"-pentamethyldiethylenetriamine (PMDETA), a polyurethane catalyst, and N-2-hydroxypropyl-N,N',N',N"-tetramethyldiethylenetriamine (HPTMDETA) a nonfugitive polyurethane catalyst.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: July 4, 1995
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Richard V. C. Carr, Craig R. Williams
  • Camera
    Patent number: D809046
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: January 30, 2018
    Assignee: TASER INTERNATIONAL, INC.
    Inventors: Jonathan R. Hatcher, Nathan A. Patulski, Kevin Walsh, Craig R. Williams
  • Base for camera mount
    Patent number: D823925
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 24, 2018
    Assignee: AXON ENTERPRISE, INC.
    Inventors: Jonathan R. Hatcher, Craig R. Williams, Kevin Walsh, Nathan A. Patulski
  • Base for a camera mount
    Patent number: D823926
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 24, 2018
    Assignee: AXON ENTERPRISE, INC.
    Inventors: Benjamin A. Grover, Johnathan R. Hatcher, Craig R. Williams, Kevin Walsh, Nathan A. Patulski
  • Base for a camera mount
    Patent number: D823927
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 24, 2018
    Assignee: AXON ENTERPRISE, INC.
    Inventors: Jonathan R. Hatcher, Craig R. Williams, Kevin Walsh, Nathan A. Patulski
  • Mount for a camera
    Patent number: D823928
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 24, 2018
    Assignee: AXON ENTERPRISE, INC.
    Inventors: Jonathan R. Hatcher, Craig R. Williams, Kevin Walsh, Nathan A. Patulski