Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6940692 | Magnetic recording head having a corrosion-protective layer of a metal salt of a perfluorinated polyether acid | Qing Dai, Wing Tsang Tang | 2005-09-06 |
| 6932890 | Method for making a magnetic recording disk having a corrosion-protective layer of a perfluorinated polyether acid | Qing Dai, Wing Tsang Tang | 2005-08-23 |
| 6916955 | Process for synthesizing perfluorinated polyethers with metal carboxylate end groups | Qing Dai, Wing Tsang Tang | 2005-07-12 |
| 6638622 | Perfluorinated polyethers with metal carboxylate end groups as anti-wetting and corrosion-protective agents | Qing Dai, Wing Tsang Tang | 2003-10-28 |
| 6083600 | Stabilized perfluoropolyether lubricant | Charles Gordon Wade | 2000-07-04 |