Assignee
Inventors
- Thomas C. Prentice (48 patents)
- Brian P. Prescott (16 patents)
- Thomas Purcell (9 patents)
- Stephen S. Helm (7 patents)
- Donald J. Martin (15 patents)
- Kevin Brown (19 patents)
- James P. Donnelly (1 patents)
US Patent 6007631 · Granted Dec 28, 1999