Patents by Inventor David A. Matkin

David A. Matkin 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).

  • Patent number: 11934806
    Abstract: A method, computer program product, and computing system for enabling a user to select a plurality of functional modules from a library of functional modules; and enabling the user to visually arrange the plurality of functional modules to form a conversational application; wherein the conversational application includes a contingency platform configured to enable an administrator of the conversational application to activate a contingency plan at some point-in-time after the deployment of the conversational application.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: March 19, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David Ardman, Andrew Matkin, Nirvana Tikku, Robert A. Follett
  • Patent number: 5895642
    Abstract: The in vivo catalytic dismutation of hydrogen peroxide by pseudocatalase such as a transition metal bicarbonate complex is increased by the addition of a chelating agent, preferably ethylenediaminetetraacetic acid (EDTA), citic acid, 2,6-pyridinedicarboxylic acid, or a salt thereof Further, the stability of a topical composition comprising a transition metal bicarbonate complex is improved by storing the composition under carbon dioxide, preferably under pressure in aerosol form.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 20, 1999
    Assignee: Stiefel Laboratories, Inc.
    Inventors: Colin Sanders, David A. Matkin, Neale C. Wareham
  • Patent number: 5646324
    Abstract: Zinc glycerolate comprised of plate-like crystals is prepared by heating a mixture of zinc oxide, or zinc oxide precursor compound, with glycerol at 15.degree. C. to 105.degree. C., usually at least 45.degree. C. Excess glycerol can be removed from the crude zinc glycerolate product by washing at least once with a C.sub.1 -C.sub.4 alkanol, preferably isopropanol.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: July 8, 1997
    Assignees: Pharmaserve Limited, Stiefel Laboratories (Ireland) Limited
    Inventors: David A. Matkin, Dennis C. Renshaw, Anthony R. Harrison
  • Patent number: 4363333
    Abstract: A nitric oxide filtration material or filter, particularly for tobacco smoke, comprises activated carbon, preferably in particulate form, upon which has been absorbed a C-nitroso compound, any substituent group of said compound, other than a nitroso group, being such as to have no critical adverse effect on the integrity of the nitroso group. The compound is preferably an aromatic compound such as nitrosobenzene, 2-nitrosotoluene or 2,4, 6-trimethylnitrosobenzene. Suitably the carbon is coal-based. Advantageously the carbon has been loaded with a metal, such as copper or iron at a loading level in the range of 0.1% to 5% by weight on an untreated carbon basis. The loading level of the C-nitroso compound may be in the range of 2% to 15%, preferably 2% to 7% by weight. Such a filter comprising the C-nitroso compound may advantageously also comprise ventilation means.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: December 14, 1982
    Assignee: British-American Tobacco Company Limited
    Inventor: David A. Matkin