Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5385639 | Deinking wastepaper printed with oil-based ink | Narayanasamy Seenivasan | 1995-01-31 |
| 5384010 | Deinking wastepaper printed with water-based ink | Narayanasamy Seenivasan | 1995-01-24 |
| 5030678 | Cationic surface sizing emulsion | Sai H. Hui | 1991-07-09 |
| 4997479 | High solids content calcium stearate dispersions | Sai H. Hui | 1991-03-05 |