Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189917 | Electrical mercury manometer | Junchang Dong | 1993-03-02 |
| 5137703 | Thermal catalytic methods for converting oxides of nitrogen into environmentally compatible products | Norman N. Lichtin, Junchang Dong | 1992-08-11 |
| 4980040 | Photopromoted method for decomposing oxides of nitrogen into environmentally compatible products | Norman N. Lichtin, Junchang Dong | 1990-12-25 |
| 4891202 | Method for making ammonia by the reduction of molecular nitrogen | Norman N. Lichtin | 1990-01-02 |
| 4612096 | Method for making ammonia by the reduction of molecular nitrogen | Norman N. Lichtin | 1986-09-16 |