Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10808844 | System, method and apparatus for pipe restrained joint seal and lock | Joshua E. Clapper, Roy L. Dean | 2020-10-20 |
| 10794517 | System, method and apparatus for expansion coupling for pipes with sheathed grooves | Joshua E. Clapper | 2020-10-06 |
| 10746335 | System, method and apparatus for ramped retainer for a pipe | Joshua E. Clapper, Roy L. Dean | 2020-08-18 |
| 10550979 | System for conduit squeeze retainer | Joshua E. Clapper, Roy L. Dean | 2020-02-04 |