Patents Assigned to Event Systems, Inc.
  • Graduated T-scale
    Patent number: D259108
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: May 5, 1981
    Assignee: Event Systems, Inc.
    Inventor: Frederick W. Holler, III
  • Penile tumescence monitor
    Patent number: D262994
    Type: Grant
    Filed: October 13, 1978
    Date of Patent: February 9, 1982
    Assignee: Event Systems, Inc.
    Inventors: Frederick W. Holler, Jr., Donald R. Wiedeman