Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5881420 | Chimney clamp and seal | — | 1999-03-16 |
| 5838880 | Ground heating system | Richard E. Brooks | 1998-11-17 |
| 5820301 | Method for thawing frozen ground | — | 1998-10-13 |
| 5707179 | Method and apparaatus for curing concrete | — | 1998-01-13 |
| 5567085 | Method for thawing frozen ground for laying concrete | — | 1996-10-22 |
| 5449113 | Probe for circulating heated water | — | 1995-09-12 |
| 5181655 | Mobile heating system | — | 1993-01-26 |