Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8435624 | Wear-resisting surface structure | Roger D. Hibberd, Surangsee Dechjarern | 2013-05-07 |
| 7922428 | Coated bore cutting tools | — | 2011-04-12 |
| 4803335 | Gas shroud and method | William M. Steen | 1989-02-07 |
| 4777341 | Back reflection monitor and method | William M. Steen | 1988-10-11 |
| 4726715 | Screw powder feeders | William M. Steen | 1988-02-23 |
| 4704030 | Electromagnetic radiation detectors | William M. Steen | 1987-11-03 |