B01D 61/20
Accessories
Official title: Accessories; Auxiliary operations
B01D61/20 (Accessories) appears on 433 US grants and 544 published applications in this corpus.
Search patents in B01D- Granted patents
- 433
- Published applications
- 544
- Assignees
- 322
- Inventors
- 1,009
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 17 | 4 |
| 2002 | 11 | 26 |
| 2003 | 14 | 19 |
| 2004 | 14 | 33 |
| 2005 | 11 | 34 |
| 2006 | 18 | 40 |
| 2007 | 16 | 19 |
| 2008 | 18 | 27 |
| 2009 | 12 | 15 |
| 2010 | 14 | 16 |
| 2011 | 8 | 17 |
| 2012 | 11 | 22 |
| 2013 | 15 | 21 |
| 2014 | 16 | 11 |
| 2015 | 14 | 19 |
| 2016 | 10 | 10 |
| 2017 | 15 | 18 |
| 2018 | 9 | 25 |
| 2019 | 14 | 22 |
| 2020 | 24 | 26 |
| 2021 | 13 | 22 |
| 2022 | 18 | 29 |
| 2023 | 17 | 18 |
| 2024 | 12 | 22 |
| 2025 | 14 | 10 |
| 2026 | 9 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for protecting drinking water from microorganisms30 Jun 2026US 12,667,810 B2BWT Holding GmbH
- Filtering device, purification device, and method for manufacturing chemical liquid16 Jun 2026US 12,654,136 B2FUJIFILM Corporation
- Device and a method for tangential flow filtration of a fluid12 May 2026US 12,623,169 B2Levitronix LLC
- Cell culture bioreactor with zone control28 Apr 2026US 12,612,585 B2ABEC, Inc.
- Spiral wound membrane modules with sensor and transmitter field17 Mar 2026US 12,576,364 B2Ddp Specialty Electronic Materials US, LLC
- Method for testing the integrity of virus filtration modules and a filtration apparatus for carrying out the method20 Aug 2026US 2026/0241343 A1Boehringer Ingelheim International GmbH
- Control device, control method, and control program20 Aug 2026US 2026/0242254 A1Yokogawa Electric Corporation
- Integrated pre-filter for uf/mf membrane system30 Jul 2026US 2026/0216654 A1
- Membrane scouring airflow control system, membrane scouring airflow control method, and membrane scouring airflow control program23 Jul 2026US 2026/0208115 A1Kubota Corporation
- Cell culture bioreactor with zone control23 Jul 2026US 2026/0209668 A1ABEC, Inc.
Most cited
By later US patents
- Fluid separation and delivery apparatus and method279US 6,852,219 B22005
- Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate200US 5,639,373 AZenon Environmental Inc. · 1997
- Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces191US 5,783,083 AZenon Environmental Inc. · 1998
- Automated system for processing biological fluid157US 5,690,815 APall Corporation · 1997
- System for maintaining a clean skein of hollow fibers while filtering suspended solids154US 5,944,997 AZenon Environmental Inc. · 1999