Assignee
Inventors
- Joe Wayne Blackard (7 patents)
- Richard Adams Gillaspy (2 patents)
- William John Henthorn (1 patents)
- Lynn Erich Petersen (7 patents)
- Lance W. Russell (100 patents)
- Gary R. Shippy (21 patents)
US Patent 5918020 · Granted Jun 29, 1999