Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11655897 | Multi-layered PTFE radial lip seal | T. Scott Tanner, Joseph D. Young, Stefan Pitolaj | 2023-05-23 |
| 11635145 | Hydraulic components and methods of manufacturing | Randy Matthys, Chad Yoder, Louis Mattina | 2023-04-25 |
| 11143305 | Hydraulic components and methods of manufacturing | Randy Matthys, Chad Yoder, Louis Mattina | 2021-10-12 |
| 11118685 | Multi-layered PTFE radial lip seal | T. Scott Tanner, Joseph D. Young, Stefan Pitolaj | 2021-09-14 |
| D893684 | Header ring for a reciprocating stem or piston rod | Randy Matthys, Chad Yoder, Louis Mattina | 2020-08-18 |
| 8871841 | Process for making high-pressure sheet gasketing materials | Matthew C. Muir, Kenneth W. Hill | 2014-10-28 |
| 6468000 | Method and apparatus for feeding a tunnel roof support system from the roof shield of a TBM | Christopher McNally | 2002-10-22 |
| 5579698 | Transportation and installation device for heavy pipes | Henry Lis | 1996-12-03 |
| 4439066 | Pervious tunnel liner member | — | 1984-03-27 |