Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876946 | Flexible hose pump | Nikolai F. Kryazhevskikh, Jury P. Shapovalov | 1989-10-31 |
| 4865673 | Method of applying a protective coating to the inner surface of a pipeline and device for carrying out the method | Nikolai F. Kryazhevskikh, Viktor N. Oleinik, Yaroslav P. Sushkov, Evgeny G. Lukin, Petr G. Sokol +4 more | 1989-09-12 |
| 4841843 | Device for converting energy of fluid medium into mechanical work | Nikolai F. Kryazhevskikh, Jury P. Shapovalov | 1989-06-27 |
| 4839047 | Intermittent-action apparatus for filtering liquid | Nikolai F. Kryazhevskikh, Jury P. Shapovalov | 1989-06-13 |
| 4832843 | Apparatus for filtering fluid medium | — | 1989-05-23 |
| 4828796 | Method of protecting the internal surface of a pipeline against corrosion | Yaroslav P. Sushkov, Duglas Z. Serazetdinov, Evgeny G. Lukin, Viktoria I. Kapralova, 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 | Dmitry N. Cherebedov, Nikolai F. Kryazhevskikh, Valery P. Panchenko, Yaroslav P. Sushkov, Evgeny G. Lukin +4 more | 1989-04-04 |