Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4257888 | Cartridge filter | Boris B. Kudryavtsev, Valentin P. Krasnokutsky, Semen F. Sholk, Jury R. Svidler, Ivan V. Zhigarev +4 more | 1981-03-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4257888 | Cartridge filter | Boris B. Kudryavtsev, Valentin P. Krasnokutsky, Semen F. Sholk, Jury R. Svidler, Ivan V. Zhigarev +4 more | 1981-03-24 |