Patents by Inventor William L. Lawson, III

William L. Lawson, III 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).

  • Fabric containing PBI-p fiber
    Patent number: 10648107
    Abstract: A fabric for a thermal protective application includes: 5-40 weight % PBI-p fiber and the balance being conventional fibers, where the fabric has equal or better flame-resistant and/or heat-resistant properties, and a fabric weight less than an equivalent fabric made with a like amount of PBI-s fiber in place of the PBI-p fibers. The fabric for a thermal protective application includes: 5-40 weight % of a blend of PBI-p fiber and PBI-s fiber, and the balance being conventional fibers, where the fabric has equal or better flame-resistant and/or heat-resistant properties and a fabric weight less than an equivalent fabric made with a like amount of PBI-s fiber in place of the PBI-p fibers.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 12, 2020
    Assignee: PBI Performance Products, Inc.
    Inventors: Brian P. Shiels, Diane B. Hess, William L. Lawson, III
  • FABRIC CONTAINING PBI-p FIBER
    Publication number: 20170226667
    Abstract: A fabric for a thermal protective application includes: 5-40 weight % PBI-p fiber and the balance being conventional fibers, where the fabric has equal or better flame-resistant and/or heat-resistant properties, and a fabric weight less than an equivalent fabric made with a like amount of PBI-s fiber in place of the PBI-p fibers. The fabric for a thermal protective application includes: 5-40 weight % of a blend of PBI-p fiber and PBI-s fiber, and the balance being conventional fibers, where the fabric has equal or better flame-resistant and/or heat-resistant properties and a fabric weight less than an equivalent fabric made with a like amount of PBI-s fiber in place of the PBI-p fibers.
    Type: Application
    Filed: January 23, 2017
    Publication date: August 10, 2017
    Inventors: Brian P. Shiels, Diane B. Hess, William L. Lawson, III
  • Flame resistant fabric with tracing yarns
    Patent number: 9528862
    Abstract: A flame resistant fabric with tracing yarns includes a flame resistant fabric with a first non-tracing yarn, and a second tracing yarn. The first non-tracing yarn and/or the second tracing yarn include flame resistant fibers being selected from the group consisting of inherently flame resistant fibers and treated fibers. When the flame resistant fabric is exposed to heat, flames, long-term excessive UV light, or the like, the first non-tracing yarn is adapted to hold its color and the second tracing yarn is adapted to change colors.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: December 27, 2016
    Assignee: PBI Performance Products, Inc.
    Inventors: William L. Lawson, III, Kimberly M. Henry, Brian P. Shiels
  • Polybenzimidazole solution in an ionic liquid
    Patent number: 9447242
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: September 20, 2016
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III
  • FLAME RESISTANT FABRIC WITH TRACING YARNS
    Publication number: 20140290560
    Abstract: A flame resistant fabric with tracing yarns includes a flame resistant fabric with a first non-tracing yarn, and a second tracing yarn. The first non-tracing yarn and/or the second tracing yarn include flame resistant fibers being selected from the group consisting of inherently flame resistant fibers and treated fibers. When the flame resistant fabric is exposed to heat, flames, long-term excessive UV light, or the like, the first non-tracing yarn is adapted to hold its color and the second tracing yarn is adapted to change colors.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: William L. Lawson, III, Kimberly M. Henry, Brian P. Shiels
  • Polybenzimidazole solution in an ionic liquid
    Patent number: 8420732
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate. The ionic liquid may be a salt having a melting point less than or equal to 100° C. The salt having a cation (+) and an anion (?). The cation may be selected from the group consisting of: choline, ammoniums, phosphoniums, pyridiniums, pyrrolidiniums, morpholimiums, pyrazoliums, sulfoniums, imidazoliums. The anion may be selected from the group consisting of: halides, bis(triflyl)amide, CF3SO3?, hydroxides, nitrates, sulfates, acetates, cyanates, aluminates, borates, phosphates, phosphorates, alkylsulfates, tosylates.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: April 16, 2013
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III
  • FLAME RESISTANT FABRIC WITH TRACING YARNS
    Publication number: 20120171918
    Abstract: A flame resistant fabric with tracing yarns includes a flame resistant fabric with a first non-tracing yarn, and a second tracing yarn. The first non-tracing yarn and/or the second tracing yarn include flame resistant fibers being selected from the group consisting of inherently flame resistant fibers and treated fibers. When the flame resistant fabric is exposed to heat, flames, long-term excessive UV light, or the like, the first non-tracing yarn is adapted to hold its color and the second tracing yarn is adapted to change colors.
    Type: Application
    Filed: December 21, 2011
    Publication date: July 5, 2012
    Inventors: William L. Lawson, III, Kimberly M. Henry, Brian P. Shiels
  • POLYBENZIMIDAZOLE SOLUTION IN AN IONIC LIQUID
    Publication number: 20120142830
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.
    Type: Application
    Filed: February 9, 2012
    Publication date: June 7, 2012
    Inventors: Bobby G. Dawkins, Barrie Davis, Gregory S. Copeland, William L. Lawson, III
  • POLYBENZIMIDAZOLE SOLUTION IN AN IONIC LIQUID
    Publication number: 20110152413
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III