B01D 61/32
Controlling or regulating
B01D61/32 (Controlling or regulating) appears on 219 US grants and 212 published applications in this corpus.
Search patents in B01D- Granted patents
- 219
- Published applications
- 212
- Assignees
- 76
- Inventors
- 360
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 15 | 0 |
| 1998 | 9 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 4 |
| 2004 | 2 | 0 |
| 2005 | 1 | 4 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 5 |
| 2009 | 3 | 5 |
| 2010 | 1 | 11 |
| 2011 | 6 | 5 |
| 2012 | 9 | 21 |
| 2013 | 4 | 15 |
| 2014 | 5 | 11 |
| 2015 | 13 | 17 |
| 2016 | 12 | 12 |
| 2017 | 17 | 18 |
| 2018 | 16 | 10 |
| 2019 | 18 | 10 |
| 2020 | 14 | 16 |
| 2021 | 9 | 9 |
| 2022 | 11 | 11 |
| 2023 | 8 | 6 |
| 2024 | 9 | 7 |
| 2025 | 9 | 8 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for reducing volume of raw material liquid15 Sep 2026US 12,734,485 B2Asahi Kasei Kabushiki Kaisha
- Microdialysis system comprising flow feedback device19 May 2026US 12,629,056 B2Shanghai Coloshore Automation Technology Co., Ltd.
- Device and a method for tangential flow filtration of a fluid12 May 2026US 12,623,169 B2Levitronix LLC
- Guided blood filtration therapy, systems, and methods24 Feb 2026US 12,558,470 B2CorRen Medical, Inc.
- Apparatus for trending automated peritoneal dialysis treatments30 Dec 2025US 12,508,354 B2Baxter Healthcare S. A.
- Organic solvent regenerator, substrate processing system, and method of regenerating organic solvent27 Aug 2026US 2026/0250222 A1SCREEN Holdings Co., Ltd.
- Membrane Dialysis Device23 Jul 2026US 2026/0208111 A1AT&S Austria Technologie & Systemtechnik Aktiengesellschaft
- Tangential flow filter system for the filtration of materials from biologic fluids30 Oct 2025US 2025/0332547 A1Minnetronix Neuro, Inc.
- Method and an apparatus for evaluating a condition of a water purification system11 Sep 2025US 2025/0282648 A1Baxter Healthcare S. A.
- Tangential flow filter system for the filtration of materials from biologic fluids17 Jul 2025US 2025/0229230 A1Minnetronix, Inc.
Most cited
By later US patents
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Hemodialysis machine with automatic priming by induced pressure pulses251US 5,863,421 AAksys, Ltd. · 1999
- Electrolyte and pH monitoring for fluid removal processes251US 9,192,707 B2Medtronic, Inc. · 2015
- Method of rinsing back blood to hemodialysis patient243US 5,690,831 AAksys, Ltd. · 1997
- Methods for ultrafiltration control in hemodialysis212US 5,725,776 AAksys, Ltd. · 1998