Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653896 | Process for high quality plasma arc and laser cutting of stainless steel and aluminum | Richard W. Couch, Jr., Nicholas A. Sanders, Zhipeng Lu, Lifeng Luo | 1997-08-05 |
| 5558786 | Process for high quality plasma arc and laser cutting of stainless steel and aluminum | Richard W. Couch, Jr., Nicholas A. Sanders, Zhipeng Lu, Lifeng Luo | 1996-09-24 |
| 5380976 | Process for high quality plasma arc and laser cutting of stainless steel and aluminum | Richard W. Couch, Jr., Nicholas A. Sanders, Zhipeng Lu, Lifeng Luo | 1995-01-10 |