Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338779 | Dry polymer activation apparatus and method | — | 1994-08-16 |
| 5316031 | Valve with independent control of discharge through plurality of orifices | Yong-Ha Kim | 1994-05-31 |
| 5284626 | Polymer activation apparatus | Troy C. Litherland, Derek J. Green | 1994-02-08 |
| 5284627 | Polymer activation apparatus | Troy C. Litherland, J. Derek Green, Yong Hoon Kim | 1994-02-08 |