Issued Patents All Time
Showing 26–50 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D404042 | Concrete saw with stabilized carriage and blade control | — | 1999-01-12 |
| D404041 | Guard for walk behind trowel | — | 1999-01-12 |
| D403332 | Ventilated quick access support hood system for riding trowels | — | 1998-12-29 |
| D402998 | Ventilated quick access inspection plate for riding trowels | — | 1998-12-22 |
| D402999 | Ventilated quick access inspection plate for riding trowels | — | 1998-12-22 |
| D400544 | Guard for walk behind trowel | — | 1998-11-03 |
| D400542 | Stretch frame twin engine riding trowel | — | 1998-11-03 |
| 5816739 | High performance triple rotor riding trowel | — | 1998-10-06 |
| 5803658 | Riding trowel with counter rotating rotors | — | 1998-09-08 |
| 5685667 | High performance contra-rotating riding trowel | — | 1997-11-11 |
| 5658089 | Buffered trowel guard clearance system | — | 1997-08-19 |
| 5613801 | High performance twin engine rotor-steered riding trowel | — | 1997-03-25 |
| 5567075 | Offset screed system and quick connect mounting therefore | — | 1996-10-22 |
| 5562361 | Triple roller tube concrete finisher | — | 1996-10-08 |
| 5533831 | Obstacle bypass system for concrete finishing tools | — | 1996-07-09 |
| 5480257 | Concrete riding trowel guard clearance system | — | 1996-01-02 |
| 5480258 | Variable width, twin engine riding trowel | — | 1996-01-02 |
| 5476342 | Obstacle bypass system for concrete construction | — | 1995-12-19 |
| 5405216 | Finishing trowel pitch control and clutch system | Ralph C. Luebke | 1995-04-11 |
| 5352063 | Polymer concrete paving machine | Ralph C. Luebke, Hugh L. Adams | 1994-10-04 |
| 5328295 | Torsional automatic grade control system for concrete finishing | — | 1994-07-12 |
| D344736 | Riding trowel for concrete finishing | Hugh L. Adams | 1994-03-01 |
| 5288166 | Laser operated automatic grade control system for concrete finishing | Ralph C. Luebke, Thomas J. Leyes | 1994-02-22 |
| D340340 | Riding trowel cranking dolly wheel assembly | — | 1993-10-12 |
| 5238323 | Riding trowel for concrete finishing | Hugh L. Adams | 1993-08-24 |