Patents Represented by Law Firm Klarquist, Sparkman, Cambpell, Leigh & Whinston
  • Electronic security system with configurable key
    Patent number: 4947163
    Abstract: A key for an electronic lock system is provided with circuitry capable of performing a plurality of lock-related functions. Stored in the key is characterization data that determines the key's particular functionality be electronically disabling certain ones of these functions, leaving just a subset of functions from which the operator may select. Keys having various capabilities can thus be electronically tailored from a single master design.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: August 7, 1990
    Assignee: Supra Products, Inc.
    Inventors: Walter G. Henderson, John Q. Archer, II, Gerald R. Daum, George A. Ellson, John E. Gray, Wayne F. Larson, Rockne M. Olds, Jerry P. Scansen, John W. Sherman, Edgar J. Urein