Patents by Inventor Stephen R. Ross

Stephen R. Ross 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 and apparatus for verifying the identity of dynamic memory
    Patent number: 4751667
    Abstract: The refresh cycle for a bank of dynamic memory is inhibited until a predetermined proportion of the data has corrupted. The pattern of cells in which data has corrupted is characteristic of the individual device and is used to determine whether the individual machine is authorized to run protected software.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: June 14, 1988
    Assignee: National Research Development Corporation
    Inventor: Stephen R. Ross
  • Halogen substituted .alpha.-(aminoalkyl)-3,4-dihydroxybenzyl alcohols
    Patent number: 3976695
    Abstract: Halogen substituted .alpha.-(aminoalkyl)-3,4-dihydroxybenzyl alcohols having .beta.-adrenergic stimulant activity, particularly as selective bronchodilators. The .alpha.-aminomethyl derivatives are prepared by the condensation of an appropriately substituted styrene oxide with a primary amine followed by removal of the ether protective group(s). The .alpha.-aminoethyl or .alpha.-aminopropyl derivatives are prepared by the condensation of an appropriately substituted .alpha.-bromoalkyl phenyl ketone with an N-benzyl secondary amine followed by reduction of the ketone moiety and removal of the ether protective group(s).
    Type: Grant
    Filed: January 13, 1970
    Date of Patent: August 24, 1976
    Assignee: SmithKline Corporation
    Inventors: Carl Kaiser, Stephen R. Ross