Assignee
Inventors
- Kevin Baumann (13 patents)
- Thomas J. Rehm (27 patents)
- Richard W. Piefer (5 patents)
- John Joseph Golownia, Jr. (11 patents)
- John Keller (21 patents)
- David Christopher Stringfellow (3 patents)
- Michael Keller (64 patents)
US Patent 7531973 · Granted May 12, 2009