Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350213 | Impact wrench | Georgy A. Antipov, Mikhail Gelfand, Yakov I. Tsipenjuk, Boris G. Goldshtein, Nikolai S. Lavnikov +6 more | 1982-09-21 |
| 4191264 | Impact wrench | Georgy A. Antipov, Mikhail Gelfand, Nikolai S. Lavnikov, Ivan I. Urazhdin, Yakov I. Tsipenjuk +1 more | 1980-03-04 |