Assignee
Inventors
- Arick M. Bakken (9 patents)
- Dwight D. Lemke (15 patents)
- Joseph A. Willenborg (1 patents)
- Amanda J. Wilke (2 patents)
- Thomas J. Bickel (2 patents)
- David L. Rottier (2 patents)
- Matthew A. Tobben (2 patents)
US Patent 7977813 · Granted Jul 12, 2011