Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D663697 | Conduit fitting ring | Xing-Guo Shen, John Kehren | 2012-07-17 |
| 8056938 | Fitting for corrugated conduit | James Shen, John Kehren | 2011-11-15 |
| D635934 | Conduit fitting ring | Xing-Guo Shen, John Kehren | 2011-04-12 |
| D634712 | Conduit fitting ring | Xing-Guo Shen, John Kehren | 2011-03-22 |
| D633872 | Conduit fitting ring | Xing-Guo Shen, John Kehren | 2011-03-08 |