Zelenev; Andrei S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zelenev; Andrei S..The latest application filed is for "calcium based carrier particles".
- Zelenev; Andrei S. - Spring TX
- Zelenev; Andrei S. - Oak Park IL
| Patent | Date |
|---|---|
| Calcium Based Carrier Particles App 20110046238 - Keiser; Bruce A. ; et al. | 2011-02-24 |
| Calcium Based Carrier Particles App 20110046239 - Keiser; Bruce A. ; et al. | 2011-02-24 |
| Method of improving retention and drainage in a papermaking process using a diallyl-N,N-disubstituted ammonium halide-acrylamide copolymer and a structurally modified cationic polymer Grant 6,592,718 - Wong Shing , et al. July 15, 2 | 2003-07-15 |
| Structurally rigid nonionic and anionic polymers as retention and drainage aids in papermaking Grant 6,444,091 - Ward , et al. September 3, 2 | 2002-09-03 |
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