B01F 2101/305
Treatment of water, waste water or sewage
Official title: {Treatment of water, waste water or sewage}
B01F2101/305 (Treatment of water, waste water or sewage) appears on 474 US grants and 584 published applications in this corpus.
Search patents in B01F- Granted patents
- 474
- Published applications
- 584
- Assignees
- 357
- Inventors
- 1,008
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 18 | 2 |
| 2002 | 12 | 14 |
| 2003 | 7 | 11 |
| 2004 | 8 | 12 |
| 2005 | 10 | 17 |
| 2006 | 12 | 15 |
| 2007 | 12 | 14 |
| 2008 | 8 | 16 |
| 2009 | 7 | 9 |
| 2010 | 10 | 6 |
| 2011 | 8 | 8 |
| 2012 | 9 | 10 |
| 2013 | 7 | 11 |
| 2014 | 7 | 11 |
| 2015 | 12 | 26 |
| 2016 | 17 | 13 |
| 2017 | 15 | 37 |
| 2018 | 19 | 39 |
| 2019 | 29 | 33 |
| 2020 | 34 | 40 |
| 2021 | 26 | 53 |
| 2022 | 28 | 43 |
| 2023 | 35 | 37 |
| 2024 | 32 | 31 |
| 2025 | 29 | 42 |
| 2026 | 24 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fine bubble generator, water heater, and dishwasher22 Sep 2026US 12,741,252 B2Rinnai Corporation
- Aeration module21 Jul 2026US 12,685,971 B2Sumitomo Electric Fine Polymer, Inc.
- Foldable agitator21 Jul 2026US 12,685,978 B2Autobiography Co., Ltd.
- Monodispersed microbubbles production using a modified micro-venturi bubble generator16 Jun 2026US 12,654,141 B2Khalifa University of Science and Technology
- Method for oxygen-doping of poultry drinking water with calcium carbonate control9 Jun 2026US 12,648,544 B2Air Liquide France Industrie
- Evaporator for ambient water bodies, and related system and method8 Oct 2026US 2026/0306964 A1Resource West, Inc.
- Oxygen or hydrogen functional water production device1 Oct 2026US 2026/0296941 A1Cosan Co., Ltd.
- Method for immobilizing carbon dioxide24 Sep 2026US 2026/0284576 A1Honda Motor Co., Ltd.
- Water oxidation system24 Sep 2026US 2026/0285721 A1Oxidian Labs, LLC
- Assembly providing gravity fed or pump fed curvilinear motion for polymer release and mixing, including centrally mounting multi-outlet nozzle, overflow rim discharge system, and method for passive stormwater treatment using controlled rotational flow17 Sep 2026US 2026/0274719 A1
Most cited
By later US patents
- Diffuser/emulsifier124US 6,386,751 B1Diffusion Dynamics, Inc. · 2002
- Stabilized gas-enriched and gas-supersaturated liquids101US 6,344,489 B12002
- Method and apparatus for in situ groundwater remediation82US 5,302,286 AThe Board of Trustees of the Leland Stanford Junior University · 1994
- Apparatus and method of delivery of gas-supersaturated solutions to a delivery site71US 5,693,017 AWayne State University · 1997
- Method of delivery of gas-supersaturated liquids70US 5,797,874 AWayne State University · 1998