Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10132040 | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process | David J. Castro, Rangarani Karnati, Weiguo Cheng, Mei Liu, Zhiyi Zhang | 2018-11-20 |
| 9752283 | Anionic preflocculation of fillers used in papermaking | Weiguo Cheng, Katherine M. Broadus, Dorota Smoron | 2017-09-05 |
| 9410288 | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process | David Castro, Rangarani Karnati, Weiguo Cheng, Mei Liu, Zhiyi Zhang | 2016-08-09 |
| 9303360 | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process | David Castro, Rangarani Karnati, Weiguo Cheng, Mei Liu, Zhiyi Zhang | 2016-04-05 |
| 9145646 | Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing | Bradley Benz, William C. Johnson, Mei Liu, Mark Grimm, Michael R. St. John | 2015-09-29 |
| 9034145 | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking process | David J. Castro, Rangarani Karnati, Weiguo Cheng, Mei Liu, Zhiyi Zhang | 2015-05-19 |
| 8999111 | Method of increasing paper surface strength by using acrylic acid/acrylamide copolymer in a size press formulation containing starch | David J. Castro, Mei Liu, Gary S. Furman, Dorota Smoron, Zhiyi Zhang | 2015-04-07 |
| 8840759 | Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing | Bradley Benz, William C. Johnson, Mei Liu, Mark Grimm, Michael R. St. John | 2014-09-23 |
| 8778140 | Preflocculation of fillers used in papermaking | Weiguo Cheng, Katherine M. Broadus, Dorota Smoron | 2014-07-15 |