Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975512 | Hook needle with canted elliptical cross-section of the hook | Marcus Weber | 2011-07-12 |
| 4610303 | Method of underground gasification of a series of gently dipping and inclined coal seams | Vadim N. Kazak, Alfei Fedorovich Volk | 1986-09-09 |
| 4573531 | Method of underground gasification of coal seam | Ivan S. Garkusha, Vadim N. Kazak | 1986-03-04 |