Patents by Inventor Ronald K. Pettigrew

Ronald K. Pettigrew 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).

  • Portable counter and data storage system
    Patent number: 5524129
    Abstract: A compact counting and data storage system includes control circuitry coupled with a detector and input selector to enable monitoring of traffic within a selected area for a selected count interval. The system also includes a readily removable data storage unit.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: June 4, 1996
    Assignee: Ronald K. Pettigrew
    Inventors: Ronald K. Pettigrew, Bruce E. Anderson, Raymond A. Strickland