Patents by Inventor Russell F. Greafnitz

Russell F. Greafnitz 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).

  • Patent number: 4542469
    Abstract: A Programmable Demand Register (PDR.TM.) which has a multi-function externally programmable time based measuring system is disclosed. An optical communication port is provided for bidirectional communication of data, said meter being capable of recordation of energy consumption in several different modes, according to the decision of the meter programmer. Meter programming is accomplished by means of any one of three separate devices, namely a Programmer/Reader (P/R) which is a sophisticated computerized device fully adapted to reprogram the PDR.TM.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: September 17, 1985
    Assignee: Duncan Electric Company, Inc.
    Inventors: Robert E. Brandyberry, Mark M. Forbes, David D. Gloyeski, Russell F. Greafnitz, Glen R. Phillips, Robert L. Straw, Kevin L. Stricker, William A. Szabela, Richard R. Webeck, Glenn A. Mayfield, William L. Vollmer