Assignee
Inventors
- Bill J. Pope (34 patents)
- Jeffery K. Taylor (18 patents)
- Richard H. Dixon (33 patents)
- Clayton F. Gardinier (50 patents)
- Louis M. Pope (25 patents)
- Dean C. Blackburn (25 patents)
- Michael A. Vail (109 patents)
US Patent 7665898 · Granted Feb 23, 2010