Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828796 | Method of protecting the internal surface of a pipeline against corrosion | Viktor V. Shishkin, Yaroslav P. Sushkov, Duglas Z. Serazetdinov, Evgeny G. Lukin, Tamara S. Polyanskaya +5 more | 1989-05-09 |
| 4818298 | Method of removing deposits from the inside walls of a pipeline and applying protective coatings thereto | Viktor V. Shishkin, Dmitry N. Cherebedov, Nikolai F. Kryazhevskikh, Valery P. Panchenko, Yaroslav P. Sushkov +4 more | 1989-04-04 |