Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11319223 | Apparatus for preparing and dispensing a flocculant solution to dewatering an aqueous process stream | José Rafael Hernández Carucci, Jochen Friedrich Knauer | 2022-05-03 |
| 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, Aleksandar Todorovic | 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 |
| 5800709 | Biological aerated filters | — | 1998-09-01 |
| 5525230 | Process of and apparatus for treating a fluid | David J. Wrigley | 1996-06-11 |
| 5151197 | Fluid treatment | Jennifer J. Quinn | 1992-09-29 |
| 5141653 | Apparatus and method for treating a fluid | Jennifer J. Quinn | 1992-08-25 |
| 4533632 | Production of a cephalosporin by fermentation | Peter J. Bailey | 1985-08-06 |