Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697733 | Centrifugal force vibration apparatus and system | — | 1997-12-16 |
| D366302 | Golf swing alignment mat | George M. Kramer, Kenneth T. Ockey | 1996-01-16 |
| 5388470 | Centrifugal force drive machine | — | 1995-02-14 |
| 4537534 | Drive fit coupling for precast concrete piles | — | 1985-08-27 |
| 4389763 | Apparatus for joining pipe sections by jacking | — | 1983-06-28 |
| 4274665 | Wedge-tight pipe coupling | — | 1981-06-23 |