Assignee
Inventors
- Jon Donson (7 patents)
- William O. Dawson (18 patents)
- George L. Granthan (4 patents)
- Thomas H. Turpen (35 patents)
- Ann Myers Turpen (8 patents)
- Stephen J. Garger (33 patents)
- Laurence K. Grill (21 patents)
US Patent 5589367 · Granted Dec 31, 1996