Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE46925 | Composite electrode for a plasma arc torch | David J. Cook, Kirk H. Ferland, Yong Yang, Richard W. Couch, Jr., Zhipeng Lu | 2018-06-26 |
| 8680425 | Plasma arc torch having an electrode with internal passages | Peter J. Twarog, David J. Cook, Bruce P. Altobelli, David L. Bouthillier | 2014-03-25 |
| 7659488 | Composite electrode for a plasma arc torch | David J. Cook, Kirk H. Ferland, Yong Yang, Richard W. Couch, Jr., Zhipeng Lu | 2010-02-09 |
| 7375302 | Plasma arc torch having an electrode with internal passages | Peter J. Twarog, David J. Cook, Bruce P. Altobelli, David L. Bouthillier | 2008-05-20 |
| 7049540 | Process and apparatus for cutting or welding a workpiece | Nicholas A. Sanders, Richard W. Couch, Jr., Yong Yang, Zhipeng Lu, Robert C. Dean, Jr. | 2006-05-23 |
| 6841754 | Composite electrode for a plasma arc torch | David J. Cook, Kirk H. Ferland, Young Sek Yang, Richard W. Couch, Jr., Zhipeng Lu | 2005-01-11 |
| 6720518 | Process and apparatus for cutting or welding a workpiece | Nicholas A. Sanders, Richard W. Couch, Jr., Yong Yang, Zhipeng Lu, Robert C. Dean, Jr. +3 more | 2004-04-13 |
| 6713709 | Process and apparatus for cutting or welding a workpiece | Nicholas A. Sanders, Richard W. Couch, Jr., Yong Yang, Zhipeng Lu, Robert C. Dean, Jr. +3 more | 2004-03-30 |
| 6667459 | Configurable nozzle baffle apparatus and method | Kenneth J. Woods, Robert C. Dean, Jr., Sanjay Garg | 2003-12-23 |
| 6614001 | Nozzle for plasma arc torch | Yutaka Nakano, Zhipeng Lu, Aaron D. Brandt, Brian J. Currier, Kenneth J. Woods | 2003-09-02 |
| 6525291 | Process and apparatus for cutting or welding a workpiece | Nicholas A. Sanders, Richard W. Couch, Jr., Yong Yang, Zhipeng Lu, Robert C. Dean, Jr. +3 more | 2003-02-25 |
| 6424082 | Apparatus and method of improved consumable alignment in material processing apparatus | Yutaka Nakano, Zhipeng Lu, Aaron D. Brandt, Brian J. Currier, Kenneth J. Woods | 2002-07-23 |
| 5005189 | Detection of digital signals received from multipath channels | — | 1991-04-02 |
| 4513383 | Separation of communication signals in an adaptive antenna array | — | 1985-04-23 |