B01D 21/16
Provided with flocculating compartments
Official title: {provided with flocculating compartments}
B01D21/16 (Provided with flocculating compartments) appears on 27 US grants and 9 published applications in this corpus.
Search patents in B01D- Granted patents
- 27
- Published applications
- 9
- Assignees
- 21
- Inventors
- 58
- Latest grant
- 15 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Deep cone thickener with underflow concentration rapid auto-adjustment15 Dec 2020US 10,864,463 B2University of Science and Technology Beijing
- System and method for separation of suspended solids from waste fluid13 Aug 2019US 10,376,816 B2Innovation Water Clarification, Inc.
- Separation passageway module, separation unit, and separation boat for suspension separation16 Sep 2008US 7,425,260 B2Chung Yuan Christian Univers
- Multilayer energy dissipating inlet column in center-feed clarifiers27 May 2008US 7,378,027 B2
- Aggregation precipitation method15 Aug 2006US 7,090,777 B2Ebara Corporation
- Deep cone thickener with underflow concentration rapid auto-adjustment20 Aug 2020US 2020/0261828 A1University of Science and Technology Beijing
- Water treatment plant and corresponding method21 May 2020US 2020/0155972 A1Veolia Water Solutions & Technologies Support
- Apparatus and method for treating slurries26 Sep 2019US 2019/0291025 A1
- System and method for separation of suspended solids from waste fluid26 Apr 2018US 2018/0111064 A1Innovation Water Clarification, Inc.
- Pulsed sludge bed settling method and device10 May 2012US 2012/0111806 A1Degremont
Most cited
By later US patents
- Apparatus and method for separation of solids from liquid82US 5,814,230 A1998
- Method for treatment of contaminated water35US 5,741,426 A1998
- Compact apparatus for the purification of waste water by a physical chemical treatment32US 4,136,012 ADegremont · 1979
- Liquid clarification apparatus and method30US 4,146,471 A1979
- Air flotation clarifier23US 4,681,682 AAlar Engineering Corporation · 1987