Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12044270 | Lightweight nodular iron crankshaft for heavy duty engine | David C. Klemstine, Guirong Cao, Jianghuai Yang, Qigui Wang | 2024-07-23 |
| 11655776 | Cylinder block casting slab core cast geometry for sawcut entrance enhancement | Ronald J. Petrus, Richard M. Nichols, III, Brian C. Leuenhagen, Qigui Wang, James T. Singer | 2023-05-23 |
| 11619255 | System and method of making a crankshaft with alternate materials | David C. Klemstine, Guirong Cao, Jianghuai Yang, Qigui Wang, Anil K. Sachdev +1 more | 2023-04-04 |
| 7264443 | Centrifugal water pump | Frederick J. Rozario, Dennis Kitching, Allen G. Sheppard | 2007-09-04 |
| 4715896 | Cementitious binder for consolidated fill | — | 1987-12-29 |