Patents by Inventor John Stuart PARKER

John Stuart PARKER 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).

  • Vibration energy harvester for converting mechanical vibrational energy into electrical energy
    Patent number: 8680694
    Abstract: A vibration energy harvester for converting mechanical vibrational energy into electrical energy, the vibration energy harvester comprising a device for generating electrical energy when subjected to mechanical vibration, and a current control circuit electrically connected to the device for providing a substantially constant output current at an electrical output of the vibration energy harvester.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 25, 2014
    Assignee: Perpetuum Ltd.
    Inventors: John Stuart Parker, Stephen Roberts
  • Vibration Energy Harvester for Converting Mechanical Vibrational Energy into Electrical Energy
    Publication number: 20110115222
    Abstract: A vibration energy harvester for converting mechanical vibrational energy into electrical energy, the vibration energy harvester comprising a device for generating electrical energy when subjected to mechanical vibration, and a current control circuit electrically connected to the device for providing a substantially constant output current at an electrical output of the vibration energy harvester.
    Type: Application
    Filed: November 20, 2009
    Publication date: May 19, 2011
    Applicant: PERPETUUM LTD
    Inventors: John Stuart PARKER, Stephen ROBERTS