Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399730 | Method of obtaining an purified wool fat and use as an additive to lubricants | Boris I. Koupchinov, Viktor P. Parkalov, Vladimir G. Rodnenkov, Sergey F. Ermakov, Vitaly G. Tischenco +3 more | 1995-03-21 |
| 5238929 | Correction of tribology of arthritis-affected joints and medicine for its implementation | Boris I. Koupchinov, Sergey F. Ermakov, E. D. Belojenko, Vladimir G. Rodnenkov | 1993-08-24 |
| 5217748 | Method of hardening metal surfaces | Tatjana Zlatina | 1993-06-08 |
| 5195631 | Optimum screw | George K. Berman, George Khait | 1993-03-23 |