Patents by Inventor Russell Edward Shelter

Russell Edward Shelter 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).

  • Uninterruptible power supply
    Publication number: 20030048006
    Abstract: An uninterruptible power supply is disclosed that includes a digital controller comprising a plurality of microprocessors. These microprocessors are programmed and arranged to provide various control features heretofore unavailable using analog controllers of the prior art.
    Type: Application
    Filed: October 26, 2001
    Publication date: March 13, 2003
    Applicant: Liebert Corporation
    Inventors: Russell Edward Shelter, Brian Paul Heber, Kevin Kim Eschhofen, Ramesh Subramanian, Nelson John Norris, Ronald Richard Rautenstrauch, Jon Ross Funk, Kevin Jay Bell, Suratkal Padmanabha Shenoy, Terry Dwane Bush, Farzin Kafaipour, Mohammad Nanda Rahmana Marwali, Andy Margraff