Assignee
Inventors
- Kevin P. Campbell (31 patents)
- Derrick Ryan Witcher (20 patents)
- Peter McPherson (1 patents)
- Steven D. Kahl (6 patents)
- John David Windass (4 patents)
- Terence Lewis (17 patents)
- Philip D. Bentley (3 patents)
US Patent 5492839 · Granted Feb 20, 1996