Patents by Inventor Mark T. Vandersall

Mark T. Vandersall 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).

  • Method for inhibiting polymerization of (METH) acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor
    Patent number: 7253279
    Abstract: This invention relates to a method for inhibiting polymerization of (meth)acrylic acid and its esters using a polymerization inhibitor which comprises at least one reduced halide-content azine dye-based compound. A process for producing reduced halide-content azine dye-based compounds using ion exchange resin technology is also provided.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 7, 2007
    Assignee: Rohm and Haas Company
    Inventors: Stephen Bass, Robert Michael Mason, Joy Lyndon Mendoza, Steven John Skoog, Mark T. Vandersall
  • Method for inhibiting polymerization of (meth)acrylic acid and its esters using an inhibitor and a process for making a compound useful as such an inhibitor
    Patent number: 7220879
    Abstract: This invention relates to a method for inhibiting polymerization of (meth)acrylic acid and its esters using a polymerization inhibitor which comprises at least one reduced halide-content azine dye-based compound. A process for producing reduced halide-content azine dye-based compounds using ion exchange resin technology is also provided.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: May 22, 2007
    Assignee: Rohm and Haas Company
    Inventors: Stephen Bass, Robert Michael Mason, Joy Lyndon Mendoza, Steven John Skoog, Mark T. Vandersall
  • Carbonaceous adsorbents for prevention of carbon bed fires
    Patent number: 5217505
    Abstract: A process for removing an oxidizable organic compound from an oxidizing gas stream which includes contacting the gas stream with a bed of carbonaceous adsorbent particles, wherein the adsorbent particles comprise porous pyrolyzed particles of a polysulfonated cross-linked synthetic copolymer, to adsorb the oxidizable organic compound on the adsorbent particles.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: June 8, 1993
    Assignee: Rohm and Haas Company
    Inventors: Stephen G. Maroldo, Mark T. Vandersall