Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9951887 | Pipe clamp combination | Michael J. Foxx, Zhen Liu, Jennifer Mak | 2018-04-24 |
| D779299 | Pipe clamp wedge | Michael J. Foxx, Zhen Liu, Jennifer Mak | 2017-02-21 |
| 8893626 | Wheelset to side frame interconnection for a railway car truck | Thomas R. Berg, George Currier, Kevin McGarvey, Jason Reiling | 2014-11-25 |
| 8474383 | Transom for a railway car truck | Thomas R. Berg, George Currier, Kevin McGarvey, Jason Reiling | 2013-07-02 |
| 7631774 | Trolley hanger system | Michael J. Foxx, Lin Hua | 2009-12-15 |
| D559084 | Trolley pipe hanger | Michael J. Foxx, Lin Hua | 2008-01-08 |
| 5655720 | Hammer mill with improved cover liner assembly | Ching-Chung Huang | 1997-08-12 |
| 5465912 | Pulverizing and grinding hammer | James B. Graybill, Ching-Chung Huang | 1995-11-14 |