Patents by Inventor Woodward Fischer

Woodward Fischer 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).

  • Microabrasive compositions containing oöids
    Patent number: 11155735
    Abstract: Ooids, microabrasive compositions containing ooids and methods of making microabrasive compositions containing ooids are described. Generally, ooids represent small particles, which are selectable for size, size distribution, and other characteristics and can be used as a microabrasive particle. Ooids generally show a high level of symmetry, sphericity, roundness and a low aspect ratio. As described here, these characteristics generally yield a predictable and highly effective abrasive.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: October 26, 2021
    Assignee: California Institute of Technology
    Inventors: Elizabeth J. Trower, Usha F. Lingappa, John P. Grotzinger, Woodward Fischer
  • Microabrasive Compositions Containing Oöids
    Publication number: 20200140732
    Abstract: Ooids, microabrasive compositions containing ooids and methods of making microabrasive compositions containing ooids are described. Generally, ooids represent small particles, which are selectable for size, size distribution, and other characteristics and can be used as a microabrasive particle. Ooids generally show a high level of symmetry, sphericity, roundness and a low aspect ratio. As described here, these characteristics generally yield a predictable and highly effective abrasive.
    Type: Application
    Filed: September 6, 2019
    Publication date: May 7, 2020
    Applicant: California Institute of Technology
    Inventors: Elizabeth J. Trower, Usha F. Lingappa, John P. Grotzinger, Woodward Fischer
  • Microabrasive compositions containing oöids
    Patent number: 10407601
    Abstract: Ooids, microabrasive compositions containing ooids and methods of making microabrasive compositions containing ooids are described. Generally, ooids represent small particles, which are selectable for size, size distribution, and other characteristics and can be used as a microabrasive particle. Ooids generally show a high level of symmetry, sphericity, roundness and a low aspect ratio. As described here, these characteristics generally yield a predictable and highly effective abrasive.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: September 10, 2019
    Assignee: California Institute of Technology
    Inventors: Elizabeth J. Trower, Usha F. Lingappa, John P. Grotzinger, Woodward Fischer
  • Microabrasive Compositions Containing Oöids
    Publication number: 20180244967
    Abstract: Ooids, microabrasive compositions containing ooids and methods of making microabrasive compositions containing ooids are described. Generally, ooids represent small particles, which are selectable for size, size distribution, and other characteristics and can be used as a microabrasive particle. Ooids generally show a high level of symmetry, sphericity, roundness and a low aspect ratio. As described here, these characteristics generally yield a predictable and highly effective abrasive.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Applicant: California Institute of Technology
    Inventors: Elizabeth J. Trower, Usha F. Lingappa, John P. Grotzinger, Woodward Fischer