Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8870001 | Mobile counterweight equipment of crawler crane and the crane including the equipment | Linrui Sun, Liangjian Li, Biwen Qiu, Hua Wan, Hui GUO | 2014-10-28 |
| 8511489 | Mobile lift crane with variable position counterweight | David J. Pech, Kenneth J. Porubcansky | 2013-08-20 |
| 7967158 | Mobile lift crane with variable position counterweight | David J. Pech, Kenneth J. Porubcansky, Alan E. Pleuss | 2011-06-28 |
| 5941401 | Counterweight handling system for ring supported cranes | Terry L. Petzold, Jeffery L. Dreger | 1999-08-24 |
| 5484069 | Process for self-disassembling a crawler crane | — | 1996-01-16 |
| 5199586 | Quick-connect sectional boom members for cranes and the like | David J. Pech, Wayne W. Beebe, Terry S. Casavant, Paul M. Pukita, Michael J. Wanek | 1993-04-06 |
| D272955 | Mobile crane | David C. Dowrick | 1984-03-06 |
| 4397396 | Truck crane having an elongated main frame | Christopher G. Kay | 1983-08-09 |
| 4394913 | Crane having power operated outriggers and lock means therefor | Stephan R. Epps | 1983-07-26 |