B01D 2311/2649
Filtration
B01D2311/2649 (Filtration) appears on 232 US grants and 367 published applications in this corpus.
Search patents in B01D- Granted patents
- 232
- Published applications
- 367
- Assignees
- 243
- Inventors
- 843
- Latest grant
- 16 Jun 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 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 2 | 0 |
| 2009 | 2 | 4 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 10 |
| 2013 | 2 | 10 |
| 2014 | 1 | 9 |
| 2015 | 3 | 20 |
| 2016 | 8 | 21 |
| 2017 | 3 | 35 |
| 2018 | 18 | 31 |
| 2019 | 26 | 26 |
| 2020 | 29 | 31 |
| 2021 | 26 | 48 |
| 2022 | 27 | 40 |
| 2023 | 28 | 24 |
| 2024 | 23 | 27 |
| 2025 | 19 | 18 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water purifier16 Jun 2026US 12,654,137 B2Coway Co., Ltd.
- Water treatment unit comprising a plurality of filtration devices26 May 2026US 12,637,368 B2Inovaya
- System and method for desalination of water19 May 2026US 12,629,635 B2FSubsea AS
- Water purification apparatus, system and method for controlling at least one fluid property19 May 2026US 12,629,636 B2Vantive Health GmbH
- Apparatus, method and system for desalinating water using energy recovery12 May 2026US 12,623,930 B2Katz Water Tech, LLC
- Potato protein extraction apparatus and method27 Aug 2026US 2026/0250314 A1Root Extracts Limited
- Produced water treatment9 Jul 2026US 2026/0193111 A1Saudi Arabian Oil Company
- Methods of making lithium selective nanofiltration membranes and their applications2 Jul 2026US 2026/0183723 A1Greenvi Corp.
- Water filtration device25 Jun 2026US 2026/0176160 A1Caware Filtering Corporation
- Monitoring and optimizing water pre-treatment by ultraviolet illumination and addition of chemical agents4 Jun 2026US 2026/0151735 A1Atlantium Technologies Ltd.
Most cited
By later US patents
- Technique for using reverse osmosis unit36US 4,761,295 AWilliams Wholesalers, Inc. · 1988
- Reverse osmosis filtration systems35US 7,601,256 B2Next-RO, Inc. · 2009
- Water flooding method33US 7,455,109 B2BP Exploration Operating Company Limited · 2008
- Leukocyte extracts for affecting the immune system19US 4,468,379 AEndeavor Corp. · 1984
- Method of solvent recovery from a dilute solution16US 9,427,705 B12016