Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5150989 | Method and apparatus for locating a service pipe outlet transversely connected to a lined main pipe | Charles A. Long, Jr. | 1992-09-29 |
| 5044824 | Method and apparatus for locating a service pipe outlet transversely connected to a lined main pipe | Charles A. Long, Jr. | 1991-09-03 |