Assignee
Inventors
- William Derek Emery (17 patents)
- Andreas Theodorus Groot (10 patents)
- Terry Instone (10 patents)
- Seeng Djiang Liem (12 patents)
- Kenneth Metcalfe (7 patents)
- Richard George Smith (7 patents)
- Gilbert Martin Verschelling (7 patents)
US Patent 6221831 · Granted Apr 24, 2001