Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8550008 | System and method for reinjection of retard energy in a trolley-based electric mining haul truck | Joy Mazumdar | 2013-10-08 |
| 7832126 | Systems, devices, and/or methods regarding excavating | Joy Mazumdar, Daniel W. Robertson, Ken Furem | 2010-11-16 |
| 7398012 | Method for powering mining equipment | — | 2008-07-08 |
| 7024805 | Dragline excavating machine with direct drive hoist and drag drums | Michael G. Onsager, Carl D. Gilmore | 2006-04-11 |