Assignee
Inventors
- David W. Helster (33 patents)
- John Edward Knaub (15 patents)
- Peter C. O'Donnell (4 patents)
- Timothy Robert Minnick (51 patents)
- Chad William Morgan (143 patents)
- Lynn Robert Sipe (40 patents)
US Patent 7927143 · Granted Apr 19, 2011