Patents by Inventor Arthur S. Obermayer

Arthur S. Obermayer 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).

  • Cyclic tetrabenzimidazole
    Patent number: 5180821
    Abstract: Cyclic tetrabenzimidazole, a yellowish, visually non-fluorescent substance, and its chelates, tautomers, ionization and oxidation forms, having utility as chelating agents, catalysts and electrooptic components.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: January 19, 1993
    Assignee: Moleculon Research Company
    Inventors: Arthur S. Obermayer, James B. Hendrickson, Sajjat Hussoin
  • Vapor dispenser and method of making same
    Patent number: 4356969
    Abstract: A vapor dispenser which comprises a reservoir to contain a nonflowing liquid whose vapor is to be dispensed into the environment and an outer covering about the reservoir which includes a membrane vapor-emitting surface through which the vapor is dispensed from the reservoir to the environment.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: November 2, 1982
    Assignee: Moleculon Research Corporation
    Inventors: Arthur S. Obermayer, Larry D. Nichols
  • Method of monitoring toxic fluids
    Patent number: 4324558
    Abstract: A toxic-monitoring material for the detecting and monitoring of toxic fluids placed in contact with or exposed to the monitoring material, which material comprises a solid, microporous, transparent, polymeric, matrix material having interconnecting micropores filled with a liquid composition, the liquid composition comprising a solvent for the toxic component to be detected and a reactant which reacts with the toxic component, whereby a toxic component dissolves in the solvent within the micropores and reacts with the reactant, to produce a change in color or appearance throughout the depth of the material, so that the detecting and monitoring of the toxic fluid may be determined.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: April 13, 1982
    Inventor: Arthur S. Obermayer
  • Toxic-monitoring badge and method of use
    Patent number: 4258000
    Abstract: A toxic-monitoring material for the detecting and monitoring of toxic fluids placed in contact with or exposed to the monitoring material, which material comprises a solid, microporous, transparent, polymeric, matrix material having interconnecting micropores filled with a liquid composition, the liquid composition comprising a solvent for the toxic component to be detected and a reactant which reacts with the toxic component, whereby a toxic component dissolves in the solvent within the micropores and reacts with the reactant, to produce a change in color or appearance throughout the depth of the material, so that the detecting and monitoring of the toxic fluid may be determined.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: March 24, 1981
    Inventor: Arthur S. Obermayer