Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5952277 | Aromatic hydrocarbons, dimethylformamide and N-methyl pyrrolidone -containing, paint removing composition | Shizuo Maruyama | 1999-09-14 |
| 5932530 | N-methylpyrrolidone, dimethyl ester and terpene-containing, paint removing composition | Shizuo Maruyama | 1999-08-03 |
| 5824192 | Method and adjuvant composition to improve retention of particles on a wire screen | — | 1998-10-20 |
| 5554260 | Method and use involving naphthalene sulphonate salt(s) and polyethylene oxide, to improve retention and drainage | Pierre Langevin | 1996-09-10 |