Patents per Year
Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474911 | Trench sheeting device | — | 2002-11-05 |
| 5902075 | Trench falsework system | — | 1999-05-11 |
| 5885033 | Housing for a support shoe in a trench falsework | — | 1999-03-23 |
| 5876153 | Trench falsework panel | — | 1999-03-02 |
| 5829921 | Trench falsework panel | — | 1998-11-03 |
| 5725330 | Joining arrangement | — | 1998-03-10 |
| 5197829 | Support device for lining ditches | — | 1993-03-30 |
| 5180256 | Support device for lining a ditch | — | 1993-01-19 |
| 4843780 | Construction plate | — | 1989-07-04 |
| 4657442 | Cribbing device for trenches | — | 1987-04-14 |
| 4472090 | Supporting beam for excavating, trenching or like construction applications | — | 1984-09-18 |
| 4376599 | Ditch shoring unit | — | 1983-03-15 |
| 4372709 | Excavation or trenching plate | — | 1983-02-08 |
| 4345857 | Construction plate for a ditch construction device | — | 1982-08-24 |
| 4274763 | Excavating sheeting unit | — | 1981-06-23 |