Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6273644 | High pressure live service pipe renewal apparatus and method | Gregory M. Konwinski, Dennis Price, Thomas V. Gobin | 2001-08-14 |
| 6024515 | Live service pipe insertion apparatus and method | Greg Konwinski, Charles Re, Randall Doctor, Frank Poskocil, John Fred +1 more | 2000-02-15 |
| 5460071 | Power driven casing splitter apparatus | Herman A. Voss | 1995-10-24 |
| 5395118 | Crossword game board apparatus | — | 1995-03-07 |
| 5321233 | Electrofusion fitting and sealing method for distribution line | Kevin Patrick Murphy | 1994-06-14 |
| 4430733 | Switching of digital signals | John H. M. Hardy, Anthony R. Allwood, Garth I. Riley, John Hovell, Donald W. Smith +2 more | 1984-02-07 |