Assignee
Inventors
- E. Wayne Osborne (4 patents)
- Michael V. Spangler (11 patents)
- Levi C. Allen (2 patents)
- Robert J. Geertsen (8 patents)
- Paul E. Ege (2 patents)
- Walter J. Stupin (5 patents)
- Gerald Zeininger (7 patents)
US Patent 8075692 · Granted Dec 13, 2011