Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8872460 | Integrated drive motor power interface | Mark A. Gries, Zoran Vrankovic, David D. Van Dorpe | 2014-10-28 |
| 8860335 | System for managing DC link switching harmonics | Mark A. Gries, Rangarajan M. Tallam, Garrett B. Rodrigues | 2014-10-14 |
| 8829839 | System and method for temperature estimation in an integrated motor drive | Zoran Vrankovic, Rongjun Huang, David M. Brod | 2014-09-09 |
| 8766584 | System and method for managing DC link switching harmonics | Mark A. Gries, Rangarajan M. Tallam, Garrett B. Rodrigues | 2014-07-01 |
| 7778756 | Track trencher propulsion system with load control | Ty Hartwick | 2010-08-17 |
| 7696712 | Motor controller providing position feedback correction | Thomas D. Lundell | 2010-04-13 |
| 7565757 | Cutting element supported on a chain | Dean Whitten, Dan Hawks | 2009-07-28 |
| 7454851 | Cylindrical cutting element supported on a drum | Dean Whitten, Dan Hawks | 2008-11-25 |
| 7409785 | Cutting element supported on a chain | Dean Whitten, Dan Hawks | 2008-08-12 |
| 7290360 | Excavation apparatus | Mark Unzicker | 2007-11-06 |
| 7152348 | Excavation apparatus | Mark Unzicker | 2006-12-26 |
| 7055270 | Cutting element supported on a drum | Dean Whitten, Dan Hawks | 2006-06-06 |
| 6948265 | Excavation apparatus | Mark Unzicker | 2005-09-27 |
| 6839991 | Cylindrical cutting element supported on a chain | Dean Whitten, Dan Hawks | 2005-01-11 |
| 6804903 | Excavator with trenching attachment | — | 2004-10-19 |
| 6729050 | Control of excavation apparatus | Dean Whitten, Dan Hawks, Mike Vander Hart | 2004-05-04 |
| 6725579 | Excavation apparatus | Mark Unzicker | 2004-04-27 |
| D396837 | Track trencher control panel | — | 1998-08-11 |
| 5768811 | System and process for controlling an excavation implement | — | 1998-06-23 |
| 5590041 | Track trencher steering system and process | — | 1996-12-31 |
| 5574642 | Track trencher information system and process | — | 1996-11-12 |
| 5544055 | Track trencher control system and process | — | 1996-08-06 |
| 5509220 | Track trencher propulsion system and process | — | 1996-04-23 |
| 5392540 | Mounting apparatus for a bridge of a trenching machine | Keith Roozeboom | 1995-02-28 |