Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187587 | Mobile lift crane with variable position counterweight | David J. Pech | 2025-01-07 |
| 11884522 | Mobile lift crane with variable position counterweight | David J. Pech | 2024-01-30 |
| 10865079 | Mobile lift crane with variable position counterweight | David J. Pech | 2020-12-15 |
| 10336589 | Mobile lift crane with variable position counterweight | David J. Pech | 2019-07-02 |
| 9815674 | Pin puller for crane connections | Bronson E. Foust | 2017-11-14 |
| 8985353 | Mobile lift crane with variable position counterweight | David J. Pech | 2015-03-24 |
| 8827092 | Mobile lift crane with variable position counterweight | David J. Pech | 2014-09-09 |
| 8511489 | Mobile lift crane with variable position counterweight | David J. Pech, John M. Lanning | 2013-08-20 |
| 8414091 | Track tensioning system for mobile vehicles, including lift cranes | David J. Pech, Joel D. Zick | 2013-04-09 |
| 8104846 | Track connection system for mobile vehicles, including lift cranes | Joel D. Zick | 2012-01-31 |
| 7997432 | Trunnion transportation system and crane using same | Bronson E. Foust | 2011-08-16 |
| 7967158 | Mobile lift crane with variable position counterweight | David J. Pech, Alan E. Pleuss, John M. Lanning | 2011-06-28 |
| 7762412 | Mast raising structure and process for high-capacity mobile lift crane | — | 2010-07-27 |
| 7546928 | Mobile lift crane with variable position counterweight | David J. Pech | 2009-06-16 |
| 6588521 | Four track crawler crane | David J. Pech, Alan E. Pleuss | 2003-07-08 |
| 6158535 | Mechanical track drive | Charles R. Wernecke | 2000-12-12 |
| 6131751 | Counter weight handling system and boom parking device | David J. Pech, Alan E. Pleuss | 2000-10-17 |