Assignee
Inventors
- Robert E. Fischell (204 patents)
- David R. Fischell (217 patents)
- Leopold Rolih (2 patents)
- Michael W. Graves (6 patents)
- Joseph Fredrick (8 patents)
- Stanley P. Woods (5 patents)
- Richard Barthel (2 patents)
US Patent 9675815 · Granted Jun 13, 2017