Patents by Inventor Hoover Chew

Hoover Chew 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).

  • USE OF LOW TRIPHENYLPHOSPHATE, HIGH PHOSPHOROUS CONTENT ISOPROPYL PHENYL PHOSPHATES AS FLAME RETARDANTS IN POLYURETHANE OR POLYISOCYANURATE FOAMS
    Publication number: 20140179811
    Abstract: The present invention relates to the use of low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation as flame retardants in polyurethane or polyisocyanurate foams or polyurethane or polyisocyanurate foam formulations.
    Type: Application
    Filed: October 4, 2013
    Publication date: June 26, 2014
    Inventors: William J. Layman, JR., Arthurt G. Mack, Techen Tsao, Jeffrey T. Aplin, Hoover Chew
  • Use of low triphenylphosphate, high phosphorous content isopropyl phenyl phosphates as flame retardants in polyurethane or polyisocyanurate foams
    Patent number: 8575225
    Abstract: The present invention relates to the use of low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation as flame retardants in polyurethane or polyisocyanurate foams or polyurethane or polyisocyanurate foam formulations.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: November 5, 2013
    Assignee: Hickory Springs Manufacturing Company
    Inventors: William J. Layman, Jr., Arthur G. Mack, Techen Tsao, Jeffrey T. Aplin, Hoover Chew
  • Low triphenylphosphate, high phosphorous content isopropyl phenyl phosphates with high ortho alkylation
    Patent number: 8350074
    Abstract: The present invention relates to low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation that are suitable for use as flame retardant compositions, processes for their preparation, and their use as flame retardants.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: January 8, 2013
    Assignee: Albemarle Corporation
    Inventors: William J. Layman, Arthur G. Mack, Techen Tsao, Jeffrey Todd Aplin, Hoover Chew, Douglas W. Luther
  • Low triphenylphosphate, high phosphorous content isopropyl phenyl phosphates with high ortho alkylation
    Patent number: 8143433
    Abstract: The present invention relates to low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation that are suitable for use as flame retardant compositions, processes for their preparation, and their use as flame retardants.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: March 27, 2012
    Assignee: Albemarle Corporation
    Inventors: William J. Layman, Jr., Arthur G. Mack, Techen Tsao, Jeffrey Todd Aplin, Hoover Chew, Douglas W. Luther
  • Low Triphenylphosphate, High Phosphorous Content Isopropyl Phenyl Phosphates With High Ortho Alkylation
    Publication number: 20120004438
    Abstract: The present invention relates to low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation that are suitable for use as flame retardant compositions, processes for their preparation, and their use as flame retardants.
    Type: Application
    Filed: September 14, 2011
    Publication date: January 5, 2012
    Applicant: Albemarle Corporation
    Inventors: William J. Layman, Arthur G. Mack, Techen Tsao, Jeffrey Todd Aplin, Hoover Chew, Douglas W. Luther
  • USE OF LOW TRIPHENYLPHOSPHATE, HIGH PHOSPHOROUS CONTENT ISOPROPYL PHENYL PHOSPHATES AS FLAME RETARDANTS IN POLYURETHANE OR POLYISOCYANURATE FOAMS
    Publication number: 20100120930
    Abstract: The present invention relates to the use of low triphenyl phosphate, high phosphorous content aryl phosphates with high ortho alkylation as flame retardants in polyurethane or polyisocyanurate foams or polyurethane or polyisocyanurate foam formulations.
    Type: Application
    Filed: March 19, 2008
    Publication date: May 13, 2010
    Applicant: ALBEMARLE CORPORATION
    Inventors: William J. Layman, JR., Arthur G. Mack, Techen Tsao, Jeffrey T. Aplin, Hoover Chew
  • LOW TRIPHENYLPHOSPHATE, HIGH PHOSPHOROUS CONTENT ISOPROPYL PHENYL PHOSPHATES WITH HIGH ORTHO ALKYLATION
    Publication number: 20100012906
    Abstract: The present invention relates to low triphenyl phosphate, high phosphorous content aryl phosphates with high orthoalkylation that are suitable for use as flame retardant compositions, processes for their preparation, and their use as flame retardants.
    Type: Application
    Filed: April 23, 2007
    Publication date: January 21, 2010
    Applicant: Albemarle Corporation
    Inventors: William J. Layman, JR., Arthur G. Mack, Techen Tsao, Jeffrey Todd Aplin, Hoover Chew, Douglas W. Luther