Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274841 | Controlled plasma arc cutting | Subramania Ramakrishnan, Maciej Wlodzimierz Rogozinski, Frederick Bedrich Polivka, Trevor Neil Kearney, Maya Gershenzon | 2001-08-14 |
| 5756960 | Detecting non-symmetrical nozzle wear in a plasma arc torch | Maciej Wlodzimierz Rogozinski, Subramania Ramakrishnan, Nicholas A. Sanders, Richard W. Couch, Jr. | 1998-05-26 |
| 5717187 | Plasma torch condition monitoring | Maciej Wlodzimierz Rogozinski, Subramania Ramakrishnan, Nicholas A. Sanders, Richard W. Couch, Jr. | 1998-02-10 |
| 5227603 | Electric arc generating device having three electrodes | Walter T. Oppenlander, deceased, Subramania Ramakrishnan | 1993-07-13 |