Patents by Inventor Victor Christopher Trifu

Victor Christopher Trifu 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).

  • Dial inbound meter interface unit which derives power from telephone line when telephone is ringing
    Patent number: 5982862
    Abstract: The invention is a dial inbound MIU which includes a rechargeable power supply, such as a double layer capacitor (sometimes called a "supercapacitor" or a "SuperCap") or a rechargeable battery. The power supply can be recharged from the telephone line, either from the DC current available when the phone line is on-hook or off-hook or from the AC current which is available when the telephone line is ringing.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: November 9, 1999
    Assignee: Schlumberger Industries, Inc.
    Inventors: Benjamin Clinton Bradley, Victor Christopher Trifu
  • Dial inbound meter interface unit which uses two elements for coupling to and isolating from meter
    Patent number: 5815558
    Abstract: The invention is a dial inbound MIU which includes only two elements, a transformer and an optoisolator, to couple timing and power signals to the meter whose data is being measured and to retrieve data from the meter.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: September 29, 1998
    Assignee: Schlumberger
    Inventors: Benjamin C. Bradley, Victor Christopher Trifu