B01D 61/22
Controlling or regulating
B01D61/22 (Controlling or regulating) appears on 515 US grants and 662 published applications in this corpus.
Search patents in B01D- Granted patents
- 515
- Published applications
- 662
- Assignees
- 376
- Inventors
- 1,370
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 10 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 2 |
| 2002 | 12 | 13 |
| 2003 | 15 | 24 |
| 2004 | 10 | 33 |
| 2005 | 17 | 22 |
| 2006 | 11 | 16 |
| 2007 | 6 | 22 |
| 2008 | 14 | 21 |
| 2009 | 7 | 21 |
| 2010 | 11 | 23 |
| 2011 | 11 | 32 |
| 2012 | 17 | 22 |
| 2013 | 17 | 26 |
| 2014 | 14 | 22 |
| 2015 | 15 | 23 |
| 2016 | 14 | 20 |
| 2017 | 22 | 32 |
| 2018 | 16 | 25 |
| 2019 | 23 | 29 |
| 2020 | 32 | 46 |
| 2021 | 25 | 26 |
| 2022 | 27 | 33 |
| 2023 | 27 | 47 |
| 2024 | 13 | 32 |
| 2025 | 25 | 32 |
| 2026 | 11 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Concentration apparatus and concentration method1 Sep 2026US 12,722,120 B2Yokogawa Electric Corporation
- System and method for more complete removal of separated blood components from a separator18 Aug 2026US 12,708,875 B2Fenwal, Inc.
- Method for operating separation membrane module, computer-readable recording medium having program recorded thereon, and water production system18 Aug 2026US 12,708,878 B2Toray Industries, Inc.
- Fluid filtration system with single use filter and integrated integrity test device and method of using same2 Jun 2026US 12,643,062 B2Cytiva US LLC
- Device and a method for tangential flow filtration of a fluid12 May 2026US 12,623,169 B2Levitronix LLC
- System And Method For Preparation And Sterilization Of Buffer Or Cell Culture Medium1 Oct 2026US 2026/0297492 A1
- Manufacturing method with feedback control24 Sep 2026US 2026/0286269 A1Chr. Hansen A/S
- Control device, control method, and control program20 Aug 2026US 2026/0242254 A1Yokogawa Electric Corporation
- Method for producing concentrated liquid of raw liquid30 Jul 2026US 2026/0216659 A1Toray Industries, Inc.
- Membrane scouring airflow control system, membrane scouring airflow control method, and membrane scouring airflow control program23 Jul 2026US 2026/0208115 A1Kubota Corporation
Most cited
By later US patents
- Extracorporeal circulation apparatus437US 4,828,543 A1989
- Method and apparatus for blood withdrawal and infusion using a pressure controller419US 6,585,675 B1CHF Solutions, Inc. · 2003
- Fluid separation and delivery apparatus and method279US 6,852,219 B22005
- Systems and methods for processing cellular rich suspensions183US 5,234,608 ABaxter International Inc. · 1993
- Apparatus for the treatment of blood in particular for hemodialysis and hemofiltration173US 4,923,598 AFresenius AG · 1990