Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11054077 | Systems, compositions and methods for curing leakages in pipes | Samuel Perstnev, Boris Natapov, Alexander Perstnev | 2021-07-06 |
| 11009171 | Systems, compositions and methods for curing leakages in pipes | Samuel Perstnev, Boris Natapov, Alexander Perstnev | 2021-05-18 |
| 11009173 | Method for sealing pipelines using a gel pig | Samuel Perstnev, Boris Natapov, Alexander Perstnev, Peter Paz | 2021-05-18 |
| 11009175 | Systems and method for sealing pipelines using a gel pig | Samuel Perstnev, Boris Natapov, Alexander Perstnev, Peter Paz | 2021-05-18 |