Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636719 | Rotational control apparatus | John Davis, Kent Carlson, Darren Reasy | 1997-06-10 |
| 5613586 | Rotational control apparatus | Hugh K. Schilling, John Davis | 1997-03-25 |
| 5611415 | Rotational control apparatus | John Davis | 1997-03-18 |