Patents by Inventor Clifford B. Collins

Clifford B. Collins 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).

  • Electrostatic silica coating for electric lamps
    Patent number: 4441047
    Abstract: A silica powder mixture is disclosed for electrostatic deposition to provide diffuse light from electric lamps. The present powder mixture exhibits improved moisture resistance along with shelf life and comprises in weight proportions approximately 35-65 parts calcined diatomaceous silica, approximately 35-65 parts fumed silica, and approximately 5-15 parts colloidal hydrophobic silica.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: April 3, 1984
    Assignee: General Electric Company
    Inventors: Clifford B. Collins, William G. James
  • Electrostatic coating of silica powders on incandescent bulbs
    Patent number: 4081709
    Abstract: An improved electrostatically deposited coating is obtained by controlling the particle size and resistivity of the silica powder.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: March 28, 1978
    Assignee: General Electric Company
    Inventors: Clifford B. Collins, William G. James