Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10697121 | Papermaking process of increasing ash content of a paper product and a paper product obtained by the same | Qinglong Rao, Yulin Zhao, Weiguo Cheng, Stephen B. Ashton, Alan Smith | 2020-06-30 |
| 10145067 | Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking | Yulin Zhao, Jun Li, Qing Long Rao, Stephen B. Ashton, Weiguo Cheng +1 more | 2018-12-04 |
| 9487916 | Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking | Yulin Zhao, Jun Li, Qing Long Rao, Stephen B. Ashton, Weiguo Cheng +1 more | 2016-11-08 |
| 7938934 | ASA emulsification with ultrasound | Tommy Jacobson | 2011-05-10 |