Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331856 | Sealing gasket with plastic retainer ring for plastic pipeline systems having pre-formed sockets | Mark A. Weih | 2025-06-17 |
| 12320089 | Reinforced manhole cover gasket | William Eugene Putnam, Randall Avery Putnam, David Alan Putnam, Mark A. Weih | 2025-06-03 |
| 12270495 | Segmented grip ring for plastic pipe joint restraint systems | Mark A. Weih | 2025-04-08 |
| 12085199 | Sealing gasket for ductile iron pipe and method of manufacture | Rodney Pacheco, Bernal Rojas, Bradford G. Corbett, Jr. | 2024-09-10 |
| 11415257 | Apparatus and method for joining molecularly oriented pipe | Bradford G. Corbett, Jr., Keith Steinbruck | 2022-08-16 |
| 11365839 | Sealing and restraining gasket for use in plastic pipelines | — | 2022-06-21 |
| 11353148 | Sealing and restraint system for joining plastic pipe sections having pre-formed sockets | — | 2022-06-07 |
| 11287072 | Lightweight sealing gasket for low pressure and non-pressure applications | Rodney Pacheco, Mark A. Weih, Bernal Rojas | 2022-03-29 |
| D917026 | Pipe sealing gasket | Rodney Pacheco, Mark A. Weih, Bernal Rojas | 2021-04-20 |
| 10876672 | Sealing joint for low pressure pipe systems and method of manufacture | — | 2020-12-29 |
| 10648602 | Sealing gasket with specialized reinforcing ring for sealing plastic pipelines | — | 2020-05-12 |
| 10393296 | Sealing gasket with corrugated insert for sealing restrained or non-restrained plastic pipelines | — | 2019-08-27 |
| 10359137 | Pipe seal and pipe joint | Brent Keil, Bruce VanderPloeg | 2019-07-23 |
| 10107425 | Joint restraint for molecularly oriented pipe and method of manufacture using a groove formed on a spigot | Bradford G. Corbett, Jr. | 2018-10-23 |
| 7513536 | Pipe gasket with selective economy of scale | Bradford G. Corbett, Jr., Gerardo Darce | 2009-04-07 |
| 7509724 | Snap fit sealing gasket with precisely located internal retainer ring for square pipe grooves | Bradford G. Corbett, Jr. | 2009-03-31 |
| 7441319 | Snap fit sealing gasket with precisely located internal retainer ring for triangular pipe grooves | Bradford G. Corbett, Jr. | 2008-10-28 |
| D558310 | Pipe gasket | — | 2007-12-25 |
| 6499744 | Pipe gasket with dual purpose tail | — | 2002-12-31 |
| 6457718 | Method of forming a pipe joint between metal pipes using an extensible gasket | — | 2002-10-01 |