Assignee
Inventors
- Duane R. Smith (9 patents)
- Michael Howdeshell (7 patents)
- Lori Marten (1 patents)
- John A. Meidl (5 patents)
- Thomas J. Vollstedt (7 patents)
- Robert J. Wenta (2 patents)
- Todd Wingers (4 patents)
- Joseph E. Zuback (28 patents)
US Patent 7678268 · Granted Mar 16, 2010