Patents by Inventor Clarence E. Drumheller

Clarence E. Drumheller 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).

  • Network based IP address assignment for static IP subscriber
    Patent number: 7277416
    Abstract: In existing standards for packet data communication over enhanced cellular networks, for a subscriber having a static address, the network relies on the terminal to provide the static address. Consequently, the terminal needs to know (be programmed with) its own static address and typically the address of a home agent element of the network. To eliminate the attendant need to provision such address data in the mobile station, the static address is stored in a node of the network, and the network assigns that one address to the mobile station, every time when the subscriber requests packet data service, for example, using a mobile IP (MIP) type address assignment procedure. The address assignment operation may also provide the home agent address to the station.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: October 2, 2007
    Assignee: Cellco Partnership
    Inventors: Patricia Ruey Chang, Clarence E. Drumheller, Ce Xu, William C. King, Jack Tang, Peter Hu, Peter Li
  • Ground cover for moisture preservation, weed prevention or the like
    Patent number: D295491
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: May 3, 1988
    Inventor: Clarence E. Drumheller