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Patent applications and USPTO patent grants for Perstnev; Alexander.The latest application filed is for "systems, compositions and methods for curing leakages in pipes".
Patent | Date |
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Systems, compositions and methods for curing leakages in pipes Grant 11,054,077 - Perstnev , et al. July 6, 2 | 2021-07-06 |
Systems and method for sealing pipelines using a gel pig Grant 11,009,175 - Perstnev , et al. May 18, 2 | 2021-05-18 |
Systems, compositions and methods for curing leakages in pipes Grant 11,009,171 - Perstnev , et al. May 18, 2 | 2021-05-18 |
Method for sealing pipelines using a gel pig Grant 11,009,173 - Perstnev , et al. May 18, 2 | 2021-05-18 |
Systems, Compositions And Methods For Curing Leakages In Pipes App 20190226618 - Perstnev; Samuel ;   et al. | 2019-07-25 |
Systems And Method For Sealing Pipelines Using A Gel Pig App 20190226626 - Perstnev; Samuel ;   et al. | 2019-07-25 |
Method For Sealing Pipelines Using A Gel Pig App 20190226623 - Perstnev; Samuel ;   et al. | 2019-07-25 |
Systems, Compositions And Methods For Curing Leakages In Pipes App 20190226619 - Perstnev; Samuel ;   et al. | 2019-07-25 |
Method for sealing pipelines using a gel pig Grant 10,302,236 - Perstnev , et al. | 2019-05-28 |
Systems and method for sealing pipelines using a gel pig Grant 10,302,235 - Perstnev , et al. | 2019-05-28 |
Systems, compositions, and methods for curing leakages in pipes Grant 10,288,206 - Perstnev , et al. | 2019-05-14 |
Systems And Method For Sealing Pipelines Using A Gel Pig App 20180003330 - Perstnev; Samuel ;   et al. | 2018-01-04 |
Systems, Compositions, And Methods For Curing Leakages In Pipes App 20170363244 - Perstnev; Samuel ;   et al. | 2017-12-21 |
Method For Sealing Pipelines Using A Gel Pig App 20170363245 - Perstnev; Samuel ;   et al. | 2017-12-21 |
Heat insulating covering and method Grant 5,934,338 - Perstnev , et al. August 10, 1 | 1999-08-10 |
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