Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10527217 | Launch system for underground gas main stop-off station | Philip J. Fowles, Dennis R. Jarnecke, Jeff Mainzer | 2020-01-07 |
| 7235961 | Method for managing corrosion of an underground structure | G. Gregory Penza, Philip J. Fowles | 2007-06-26 |