Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 10898948 | Method of manufacturing metal castings | Qigui Wang, Michael J. Walker, Garrold A. DeGrace, Thomas W. Gustafson, Dale A. Gerard | 2021-01-26 | $67,120,000 |
| 9981310 | Degassing and microstructure refinement of shape casting aluminum alloys | Qigui Wang, Devin R. Hess, Jason R. Traub, Andrew J. Genualdi | 2018-05-29 | $13,079,000 |
| 9808858 | Method to improve riser feedability for semi-permanent mold casting of cylinder heads | Qigui Wang | 2017-11-07 | $16,368,000 |
| 9403209 | Methods for sand core gas evacuation and related systems and apparatus | James T. Singer, Stephen M. Fitch, Maurice G. Meyer, David D. Goettsch | 2016-08-02 | $6,967,000 |
| 8418745 | Pour ladle for molten metal | Stephen M. Fitch, Qigui Wang | 2013-04-16 | $13,453,000 |
| 8327915 | Pour ladle for molten metal | Stephen M. Fitch, Qigui Wang | 2012-12-11 | $8,662,000 |