Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11708919 | High strength, stretchable liner, for pipe | Charles Free, Abu Abraham | 2023-07-25 |
| 11384889 | Pipe liner and method of making and installing the same | Charles Free, Abu Abraham | 2022-07-12 |
| 11173634 | Electromagnetic radiation curable pipe liner and method of making and installing the same | Charles Free, Abu Abraham, James Rothe | 2021-11-16 |
| 10816112 | Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength liner | Charles Free, Abu Abraham | 2020-10-27 |
| 10704728 | Pipe liner and method of making same | Charles Free, Abu Abraham | 2020-07-07 |
| 10077855 | Method of lining pipe with high strength liner, high strength liner, and pipe lined with high strength liner | Charles Free, Abu Abraham | 2018-09-18 |