Patents by Inventor Nathan E. Perry

Nathan E. Perry 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: 7974400
    Abstract: A “parental control” (“PC”) telephone subscriber feature on a telephone system. An authorized subscriber, such as a parent, may enter a feature code which initiates the PC feature. To deactivate the feature, the subscriber enters the code and is prompted for an authorization code, such as a personal identification number (“PIN”). If the authorization code entered matches the authorization code on file for the subscriber, the PC feature is deactivated. If no match is found in the subscriber database for the PIN, the feature is not deactivated.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: July 5, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Nathan E Perry
  • Patent number: 7298835
    Abstract: A “parental control” (“PC”) telephone subscriber feature on a telephone system is disclosed. An authorized subscriber, such as a parent, may enter a feature code which initiates the PC feature. To deactivate the feature, the subscriber enters the code and is prompted for an authorization code, such as a personal identification number (“PIN”). If the authorization code entered matches the authorization code on file for the subscriber, the PC feature is deactivated. If no match is found in the subscriber database for the PIN, the feature is not deactivated.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: November 20, 2007
    Assignee: AT&T BLS Intellectual Property, Inc.
    Inventor: Nathan E. Perry
  • Patent number: 5204363
    Abstract: Triazole and imidazole compounds having the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, are hydrogen, alkyl, optionally substituted cycloalkyl, cycloalkylmethyl, alkenyl, heterocyclyl, aryl or aralkyl optionally substituted with halogen, nitro alkyl, haloalkyl, haloalkoxy, alkoxy, phenyl, phenoxy, benzyl, benzylosy, halophenyl or haloalkoxy; R.sup.3 is hydrogen, alkyl, alkenyl, alkynyl, aralkyl or acyl; R.sup.4 and R.sup.5, which may be the same or different, are hydrogen, alkyl, alkenyl or optionally substituted aryl; R.sup.6 and R.sup.7, which may be the same or different, are hydrogen, alkyl, alkenyl or optionally substituted aryl; X is oxygen or sulphur or is SO or SO.sub.2 ; and Az is 1,2,4- or 1,3,4-triazole or imidiazole ring; and isomers, acid addition salts and metal complexes thereof. The compounds are useful as plant fungicides.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: April 20, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Balasubramanyan Sugavanam, Paul A. Worthington, John M. Clough