Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5495685 | Excavator bucket | Viktor N. Labutin, Alfred R. Mattis, Sergei V. Shishaev, Vladimir N. Tsvetkov, Genrikh K. Boiko | 1996-03-05 |
| 5353532 | Tooth of active-action excavator bucket | Leonid L. Lysenko, Alfred R. Mattis, Sergei V. Shishaev, Genrikh K. Boiko, Vladimir N. Tsvetkov +1 more | 1994-10-11 |