Assignee
Inventors
- David Cheshire (28 patents)
- David Cladinggboel (1 patents)
- Martin Cooper (25 patents)
- David Hardern (15 patents)
- Simon Christopher Hirst (12 patents)
- Carol Manners (3 patents)
- Michael Stocks (10 patents)
US Patent 6143751 · Granted Nov 7, 2000