Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5837098 | Method for deinking electrostatic printed wastepaper using a combination of nonionic surfactants | Chin Li, Bhima R. Vijayendran | 1998-11-17 |
| 5583097 | Deinking agent of nonionic surfactants | Chin Li, Bhima R. Vijayendran | 1996-12-10 |
| 5560806 | Process for deinking electrostatic printed paper using a combination of non-ionic surfactants | Chin Li, Bhima R. Vijayendran | 1996-10-01 |
| 4804476 | Process for controlling calcium oxalate scale over a wide pH range | Gloria D. Sinkovitz | 1989-02-14 |