Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10982391 | High-efficiency strength program used for making paper in higher charge demand system | Meng Zhang, Na Xu | 2021-04-20 |
| 10844541 | Release aid | Jia-Chi Wu, Xiao Min ZHANG | 2020-11-24 |
| 10704201 | Dry strength agent composition and method for enhancing the dry strength of paper | Chunhao Wang, Na Xu, Jun Li, Meng Zhang | 2020-07-07 |
| 10697121 | Papermaking process of increasing ash content of a paper product and a paper product obtained by the same | Qinglong Rao, Weiguo Cheng, Stephen B. Ashton, Aleksandar Todorovic, Alan Smith | 2020-06-30 |
| 10422079 | Method for preserving recycled fiber by using biocides in paper manufacturing and method for manufacturing paper using recycled fibers | Wenli TU, Yumei Lu, Zhi Chen | 2019-09-24 |
| 10316469 | On-line control and reaction process for pH adjustment | Meng Zhang, Na Xu, Jun Li | 2019-06-11 |
| 10145067 | Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking | Jun Li, Qing Long Rao, Stephen B. Ashton, Weiguo Cheng, Aleksandar Todorovic +1 more | 2018-12-04 |
| 10005007 | Biodiesel-based emulsion defoamer and method for making the same | Yanru Fan | 2018-06-26 |
| 9873983 | Process and compositions for paper-making | Bo Zhu, Meng Zhang, Jun Li, Na Xu | 2018-01-23 |
| 9873986 | Paper-making aid composition and process for increasing ash retention of finished paper | Bo Zhu, Na Xu, Meng Zhang | 2018-01-23 |
| 9506202 | Furnish pretreatment to improve paper strength aid performance in papermaking | Jun Li, Qing Long Rao, Weiguo Cheng | 2016-11-29 |
| 9487916 | Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking | Jun Li, Qing Long Rao, Stephen B. Ashton, Weiguo Cheng, Aleksandar Todorovic +1 more | 2016-11-08 |
| 8882964 | Furnish pretreatment to improve paper strength aid performance in papermaking | Jun Li, Qing Long Rao, Weiguo Cheng | 2014-11-11 |
| 8709208 | Method to increase dewatering, sheet wet web strength and wet strength in papermaking | Jun Li, Qing Long Rao, Weiguo Cheng | 2014-04-29 |
| 8465623 | Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking | Jun Li, Qing Long Rao, Weiguo Cheng | 2013-06-18 |
| 8088250 | Method of increasing filler content in papermaking | Weiguo Cheng, Jun Li, Qing Long Rao | 2012-01-03 |