Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028538 | Composition and method for increasing wet and dry paper strength | Daniel F. Varnell | 2021-06-08 |
| 9885155 | Modified vinylamine containing polymers and their use in papermaking | Qu-Ming Gu, Joseph M. Mahoney, Kate Marritt Lusvardi, Mingxiang Luo | 2018-02-06 |
| 9879380 | Modified of improving dry strength and/or drainage of a paper or paperboard | Qu-Ming Gu, Joseph M. Mahoney, Kate Marritt Lusvardi, Mingxiang Luo | 2018-01-30 |
| 9783933 | Modified vinylamine-containing polymers and their use in papermaking | Qu-Ming Gu, Joseph M. Mahoney, Kate Marritt Lusvardi, Mingxiang Luo, Richard J. Riehle | 2017-10-10 |
| 8900412 | Surface application of polymers to improve paper strength | Marc C. Putnam | 2014-12-02 |
| 8894816 | Vinylamine containing copolymer microparticles as additives in papermaking | — | 2014-11-25 |
| 8696869 | Surface application of polymers and polymer mixtures to improve paper strength | Marc C. Putnam | 2014-04-15 |