Patents by Inventor Al Simpson

Al Simpson 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).

  • Private telephone management system and method
    Publication number: 20020110235
    Abstract: An apparatus for adding functionality to a private telephone system, comprising: a processing unit monitoring a telephone line and operable to perform said added functionality; a talk battery; and a switch having an input for a telephone, and an output selectable between an input of said private telephone system and said talk battery, said switch being controlled by said processing unit.
    Type: Application
    Filed: February 9, 2001
    Publication date: August 15, 2002
    Inventors: Al Simpson, Paul Zoehner, Gord Reed, Dennis Elmer Johns