Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6146253 | Apparatus and method for precision grinding face gear | Faydor L. Litvin, Yih-Jen D. Chen, Gregory F. Heath, Ningxin Chen | 2000-11-14 |
| 5862706 | Shaft deflection controller | Yih-Jen D. Chen, Gregory F. Heath, Murugappan Meyyappa | 1999-01-26 |
| 5823470 | Split torque proprotor transmission | Gary A. Craig, Gregory F. Heath | 1998-10-20 |
| 5802918 | Concentric face gear transmission assembly | Yih-Jen D. Chen, Gregory F. Heath, Ronald E. Gilbert, Michael T. Morris | 1998-09-08 |