Assignee
Inventors
- Gilbert Farmer (31 patents)
- Thomas John Tomlinson (10 patents)
- Raymond W. Heidorn (18 patents)
- Jeffrey Fehrenbach (7 patents)
- William Lee Imhoff (4 patents)
- Myron Edward Rutherford (4 patents)
US Patent 6620457 · Granted Sep 16, 2003