Patents by Inventor Robert H. Windhager

Robert H. Windhager 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).

  • Electroconductive polymer composition
    Patent number: 4306996
    Abstract: An electroconductive polymer composition containing an electroconductive polymer and an agent that imparts improved tack properties to paper coated with the composition.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: December 22, 1981
    Assignee: Calgon Corporation
    Inventor: Robert H. Windhager
  • Electroconductive coating formulations
    Patent number: 4259411
    Abstract: Electroconductive coating formulations consisting essentially of (1) a barrier coating which comprises a copolymer of ethylene and vinyl acetate, styrene-butadiene latexes, sodium alginate or fluorocarbons with starch; and (2) a conductive coating.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: March 31, 1981
    Assignee: Calgon Corporation
    Inventors: Robert H. Windhager, Mei H. Hwang
  • Electroconductive polysalt complexes
    Patent number: 4040984
    Abstract: Cationic, electrically conductive polymers are mixed with multifunctional anionic compounds and/or anionic polymers to form a polysalt complex which exhibits markedly improved properties. Specifically, solvent holdout to parafinic solvents and to toluene are considerably improved, and the tackiness of the resulting film is notably decreased. The polysalt products also exhibit very good filmability on plastic substrates whereas the cationic polymer alone normally forms very poor films on such substrates.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: August 9, 1977
    Assignee: Calgon Corporation
    Inventors: Andrew Jackson Sharpe, Jr., Robert H. Windhager, Kathleen Seese Hearp
  • One-pass electroconductive coating color formulation
    Patent number: 3953374
    Abstract: One-pass electroconductive coating color formulations are achieved by incorporating into electroconductive coating color formulations an effective quantity of a perfluoroalkyl phosphate salt.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: April 27, 1976
    Assignee: Calgon Corporation
    Inventor: Robert H. Windhager