Assignee
No assignee recorded.
Inventors
- David Ions (18 patents)
- Philip Roland Winfield (7 patents)
- Unknown
- George M. J. Gansbuehler (7 patents)
- Sean Michael Lewington (5 patents)
- Philip Costigan (4 patents)
US Patent 6189575 · Granted Feb 20, 2001
No assignee recorded.