B01D 21/0027
Floating sedimentation devices
Official title: {Floating sedimentation devices}
B01D21/0027 (Floating sedimentation devices) appears on 80 US grants and 67 published applications in this corpus.
Search patents in B01D- Granted patents
- 80
- Published applications
- 67
- Assignees
- 53
- Inventors
- 161
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 8 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 2 |
| 2003 | 1 | 3 |
| 2004 | 0 | 3 |
| 2005 | 4 | 6 |
| 2006 | 4 | 4 |
| 2007 | 1 | 3 |
| 2008 | 1 | 0 |
| 2009 | 2 | 4 |
| 2010 | 4 | 5 |
| 2011 | 4 | 3 |
| 2012 | 1 | 3 |
| 2013 | 3 | 3 |
| 2014 | 1 | 3 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 2 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 4 |
| 2021 | 1 | 4 |
| 2022 | 2 | 5 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
| 2025 | 4 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dihydromyricetin extraction and purification process5 May 2026US 12,617,764 B2Dr Kang International Limited
- Systems and processes for injecting gas-infused additives8 Jul 2025US 12,351,481 B2Ecolab USA Inc.
- Treating per- and poly-fluoroalkyl substances in landfill leachate27 May 2025US 12,312,255 B2University of Florida Research Foundation, Inc.
- Pure iron containing compound6 May 2025US 12,291,450 B2HöGanäS AB (Publ)
- Stormwater skimmer surface drain apparatus4 Mar 2025US 12,239,928 B2J.W. Faircloth & Son, Inc.
- Wastewater treatment system and methods utilizing chemical pre-treatment and foam fractionation28 Aug 2025US 2025/0270114 A1Aqua-Terra Consultants
- Treating per- and poly-fluoroalkyl substances in landfill leachate21 Aug 2025US 2025/0263310 A1
- Dihydromyricetin extraction and purification process7 Aug 2025US 2025/0250247 A1Dr Kang International Limited
- Stormwater Skimmer Surface Drain Apparatus5 Jun 2025US 2025/0177891 A1J.W. Faircloth & Son, Inc.
- Partially submerged foam fractionation system4 May 2023US 2023/0139452 A1
Most cited
By later US patents
- Nutrient and particle removal: method and apparatus for treatment of existing lakes, ponds and water bodies58US 5,143,623 A1992
- Apparatus and process for separation and recovery of liquid and slurry abrasives used for polishing33US 6,482,325 B1Linica Group, Ltd. · 2002
- Wastewater treatment system and method32US 5,637,221 A1997
- Floating decanter31US 4,695,376 AAqua-Aerobic Systems, Inc. · 1987
- Flocculation apparatus and apparatus for floating upwardly in a liquid and for moving downwardly in the liquid under the influence of gravity28US 6,406,624 B12002