Assignee
Inventors
- Alan K. Burnham (12 patents)
- Roger L. Day (15 patents)
- P. Henrick Wallman (3 patents)
- James R. McConaghy (19 patents)
- Harry Gordon Harris (2 patents)
- Paul Lerwick (2 patents)
- R. Glenn Vawter (3 patents)
US Patent 7921907 · Granted Apr 12, 2011