Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6167129 | Method and apparatus for signal mediation in a common channel signaling network | Gerald W. Fikis, H. Stewart Patch, Michael J. Mueller, Venkat Ravishankar, Dean D. Glenn +3 more | 2000-12-26 |
| 4862733 | Method and apparatus for detecting leaks in a liquid-containing tank | George J. Hyfantis, Jr., Reg W. McCulloch | 1989-09-05 |
| 4781057 | Method and apparatus for detecting leaks in a liquid-containing tank | George J. Hyfantis, Jr., Reg W. McCulloch | 1988-11-01 |