B01D 65/00
Accessories or auxiliary operations, in general, for separation processes or apparatus using
Official title: Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
B01D65/00 (Accessories or auxiliary operations, in general, for separation processes or apparatus using) appears on 3,106 US grants and 3,586 published applications in this corpus.
Search patents in B01D- Granted patents
- 3,106
- Published applications
- 3,586
- Assignees
- 1,618
- Inventors
- 7,443
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 13 | 0 |
| 1978 | 11 | 0 |
| 1979 | 18 | 0 |
| 1980 | 28 | 0 |
| 1981 | 18 | 0 |
| 1982 | 15 | 0 |
| 1983 | 12 | 0 |
| 1984 | 15 | 0 |
| 1985 | 12 | 0 |
| 1986 | 20 | 0 |
| 1987 | 28 | 0 |
| 1988 | 39 | 0 |
| 1989 | 34 | 0 |
| 1990 | 30 | 0 |
| 1991 | 47 | 0 |
| 1992 | 43 | 0 |
| 1993 | 51 | 0 |
| 1994 | 35 | 0 |
| 1995 | 34 | 0 |
| 1996 | 39 | 0 |
| 1997 | 51 | 0 |
| 1998 | 45 | 0 |
| 1999 | 64 | 0 |
| 2000 | 63 | 0 |
| 2001 | 82 | 20 |
| 2002 | 51 | 75 |
| 2003 | 50 | 99 |
| 2004 | 55 | 132 |
| 2005 | 60 | 111 |
| 2006 | 61 | 114 |
| 2007 | 56 | 117 |
| 2008 | 51 | 118 |
| 2009 | 57 | 121 |
| 2010 | 53 | 148 |
| 2011 | 76 | 159 |
| 2012 | 76 | 132 |
| 2013 | 86 | 166 |
| 2014 | 99 | 156 |
| 2015 | 102 | 200 |
| 2016 | 102 | 174 |
| 2017 | 117 | 198 |
| 2018 | 140 | 169 |
| 2019 | 158 | 163 |
| 2020 | 131 | 195 |
| 2021 | 127 | 157 |
| 2022 | 112 | 158 |
| 2023 | 121 | 148 |
| 2024 | 113 | 153 |
| 2025 | 113 | 115 |
| 2026 | 78 | 88 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Separation of alcohol using a membrane15 Sep 2026US 12,734,482 B2Altr Fltr Inc.
- Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network8 Sep 2026US 12,728,388 B2
- Water treatment method and water treatment agent composition8 Sep 2026US 12,728,390 B2Organo Corporation
- State diagnosis method for separation membrane element1 Sep 2026US 12,722,124 B2Toray Industries, Inc.
- Rain water collection, filtration, and life boat system25 Aug 2026US 12,715,792 B2Intergalactic Services 24/7, LLC
- System for determining filter status8 Oct 2026US 2026/0309611 A1
- Filter assembly for a therapeutic gas delivery device1 Oct 2026US 2026/0295513 A1Mallinckrodt Pharmaceuticals Ireland Limited
- Gas separation membrane module1 Oct 2026US 2026/0295536 A1Honda Motor Co., Ltd.
- Modular multi-filter systems and methods of use1 Oct 2026US 2026/0295538 A1Pentair Water Pool and Spa, Inc.
- In line cleaning in place process for alternating tangential flow filter1 Oct 2026US 2026/0295539 A1Enzene Biosciences Limited
Most cited
By later US patents
- Purification of saline water838US 4,036,749 A1977
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Asymmetric membranes315US 4,629,563 ABrunswick Corporation · 1986
- Hemofiltration and plasmafiltration devices and methods308US 5,919,369 AHemocleanse, Inc. · 1999
- Process for preparing hydrophilic polyamide membrane filter media and product277US 4,340,479 APall Corporation · 1982