Patents by Inventor Gregory Kenneth Bedford

Gregory Kenneth Bedford 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).

  • ULTRA-WHITE SILICA-BASED FILLER
    Publication number: 20230202849
    Abstract: An ultra-white granular silica-based filler comprises at least 99.5 wt. % silica, wherein the crystal structure of the silica is such that the silica-based filler comprises 40 to 80 wt. % cristobalite, 1 to 25 wt. % tridymite, 2-60 wt. % quartz and <5 wt. % amorphous silica, wherein the temperature of the ultra-white granular silica-based filler is no higher than 50° C. and further wherein the ultra-white granular silica-based filler exhibits an L* value in the CIELAB color space of 95-98. In addition, an ultra-white powder filler is obtained by milling, grinding or comminuting the ultra-white granular silica-based filler. The ultra-white powder filler exhibits an L* value in the CIELAB color space of 95-98.5.
    Type: Application
    Filed: March 10, 2023
    Publication date: June 29, 2023
    Applicant: Covia Holdings LLC
    Inventors: Gregory Kenneth Bedford, Claud Eric Westbrook, III
  • Ultra-white silica-based filler
    Patent number: 11629059
    Abstract: An ultra-white granular silica-based filler comprises at least 99.5 wt. % silica, wherein the crystal structure of the silica is such that the silica-based filler comprises 40 to 80 wt. % cristobalite, 1 to 25 wt. % tridymite, 2-60 wt. % quartz and <5 wt. % amorphous silica, wherein the temperature of the ultra-white granular silica-based filler is no higher than 50° C. and further wherein the ultra-white granular silica-based filler exhibits an L* value in the CIELAB color space of 95-98. In addition, an ultra-white powder filler is obtained by milling, grinding or comminuting the ultra-white granular silica-based filler. The ultra-white powder filler exhibits an L* value in the CIELAB color space of 95-98.5.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: April 18, 2023
    Assignee: Covia Holdings LLC
    Inventors: Gregory Kenneth Bedford, Claud Eric Westbrook, III
  • ULTRA-WHITE SILICA-BASED FILLER
    Publication number: 20210061666
    Abstract: An ultra-white granular silica-based filler comprises at least 99.5 wt. % silica, wherein the crystal structure of the silica is such that the silica-based filler comprises 40 to 80 wt. % cristobalite, 1 to 25 wt. % tridymite, 2-60 wt. % quartz and <5 wt. % amorphous silica, wherein the temperature of the ultra-white granular silica-based filler is no higher than 50° C. and further wherein the ultra-white granular silica-based filler exhibits an L* value in the CIELAB color space of 95-98. In addition, an ultra-white powder filler is obtained by milling, grinding or comminuting the ultra-white granular silica-based filler. The ultra-white powder filler exhibits an L* value in the CIELAB color space of 95-98.5.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Applicant: COVIA HOLDINGS CORPORATION
    Inventors: Gregory Kenneth Bedford, Claud Eric Westbrook, III