Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6262369 | Conduit connector providing dual diameter end stops | Gregory C. Marik | 2001-07-17 |
| 5929383 | Rotationally unrestrained grounding coupling for external grounding of fittings | Gregory C. Marik, Lawrence Burrough, James H. Whitehead | 1999-07-27 |