B01D 61/08
Apparatus therefor
B01D61/08 (Apparatus therefor) appears on 708 US grants and 798 published applications in this corpus.
Search patents in B01D- Granted patents
- 708
- Published applications
- 798
- Assignees
- 462
- Inventors
- 1,730
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 13 | 0 |
| 1989 | 14 | 0 |
| 1990 | 6 | 0 |
| 1991 | 18 | 0 |
| 1992 | 15 | 0 |
| 1993 | 11 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 16 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 8 |
| 2003 | 9 | 10 |
| 2004 | 5 | 21 |
| 2005 | 6 | 20 |
| 2006 | 3 | 15 |
| 2007 | 9 | 11 |
| 2008 | 6 | 12 |
| 2009 | 13 | 20 |
| 2010 | 8 | 21 |
| 2011 | 9 | 13 |
| 2012 | 9 | 17 |
| 2013 | 12 | 11 |
| 2014 | 14 | 27 |
| 2015 | 11 | 33 |
| 2016 | 13 | 26 |
| 2017 | 19 | 52 |
| 2018 | 24 | 48 |
| 2019 | 37 | 58 |
| 2020 | 43 | 50 |
| 2021 | 37 | 58 |
| 2022 | 38 | 66 |
| 2023 | 46 | 52 |
| 2024 | 51 | 73 |
| 2025 | 45 | 47 |
| 2026 | 24 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter cartridge and water purification system22 Sep 2026US 12,741,249 B2Foshan Micro Midea Filter Mfg. Co., Ltd.
- Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network8 Sep 2026US 12,728,388 B2
- Membranes with controlled porosity for serial filtration8 Sep 2026US 12,728,389 B2Gradiant Corporation
- System for reverse osmosis and for pressure retarded osmosis8 Sep 2026US 12,728,391 B2Danfoss A/S
- Method for purifying liquid and system for the implementation thereof11 Aug 2026US 12,702,952 B2Electrophor, Inc.
- Filtration manifold with integrated bypass8 Oct 2026US 2026/0307010 A1Midea Group Co., Ltd.
- Utilization of an ultra-high pressure reverse osmosis membrane system to treat industrial wastewater or a reverse osmosis reject waste stream8 Oct 2026US 2026/0308017 A1Renovo Resources LLC
- Method for producing bioethanol and device for producing bioethanol8 Oct 2026US 2026/0308643 A1ARKHE Co., Ltd.
- Method for recovering alkali metal salt and apparatus for recovering alkali metal salt1 Oct 2026US 2026/0295533 A1Toray Industries, Inc.
- Cmp slurry reuse optimization system through convergence and complex processing technology17 Sep 2026US 2026/0275160 A1SK hynix Inc.
Most cited
By later US patents
- Closed hemapheresis system and method178US 4,776,964 A1988
- Quick-change filter cartridge and head therefor175US 4,735,716 ACuno Corporated · 1988
- Closed hemapheresis system and method158US 4,911,833 A1990
- Self-contained water treatment system152US 5,269,919 A1993
- Water dispenser with side by side filling-stations144US 5,582,717 A1996