| 8132983 |
Riding concrete trowel with stabilizers |
Richard Goldberg |
2012-03-13 |
| 7896575 |
Soil compactor having low profile muffler |
David Schulenberg, Jeffrey W. Dujmovic, David J. Waldenberger, Gary D. Goplen, Dawn Auby |
2011-03-01 |
| 7686538 |
Portable vibratory screed with bubble vial inclination indication system |
Richard Goldberg, Darrin W. Dauffenbach, Timothy J. Lickel |
2010-03-30 |
| 7172365 |
Method of making and using a dynamically balanced walk behind trowel |
Gregory Kruepke, Darrin W. Dauffenbach, Richard Goldberg |
2007-02-06 |
| 7052204 |
Portable vibratory screed with vibration restraint |
— |
2006-05-30 |
| 6974277 |
Dynamically balanced walk behind trowel |
Gregory Kruepke, Darrin W. Dauffenbach, Richard Goldberg |
2005-12-13 |
| 6012285 |
Exhaust pipe with improved drain |
David N. Hoffman |
2000-01-11 |
| 5993109 |
Power trowel with counterbalanced trowel blade pitch adjust assembly |
Robert M. Motl, Ronald R. Sartler, Darin Noyes |
1999-11-30 |