B01D 61/52
Accessories
Official title: Accessories; Auxiliary operation
B01D61/52 (Accessories) appears on 191 US grants and 201 published applications in this corpus.
Search patents in B01D- Granted patents
- 191
- Published applications
- 201
- Assignees
- 169
- Inventors
- 488
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 3 |
| 2002 | 7 | 8 |
| 2003 | 7 | 11 |
| 2004 | 8 | 16 |
| 2005 | 3 | 11 |
| 2006 | 10 | 12 |
| 2007 | 4 | 5 |
| 2008 | 4 | 3 |
| 2009 | 6 | 4 |
| 2010 | 7 | 1 |
| 2011 | 4 | 7 |
| 2012 | 3 | 6 |
| 2013 | 2 | 6 |
| 2014 | 5 | 5 |
| 2015 | 7 | 3 |
| 2016 | 4 | 11 |
| 2017 | 3 | 3 |
| 2018 | 3 | 5 |
| 2019 | 7 | 4 |
| 2020 | 2 | 7 |
| 2021 | 1 | 11 |
| 2022 | 4 | 12 |
| 2023 | 6 | 16 |
| 2024 | 8 | 10 |
| 2025 | 3 | 8 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid system and method of waste heat utilization-based photovoltaic power generation and seawater desalination6 Oct 2026US 12,752,240 B2Xi' An Jiaotong University
- Hybrid electrodialysis and electrolysis systems and processes23 Jun 2026US 12,662,401 B2Pani Clean, Inc.
- Lithium isotope concentration device, multi-stage lithium isotope concentration device, and lithium isotope concentration method5 May 2026US 12,616,936 B2Hirosaki University
- Two-stage electrodialysis system and method for recovering waste CO2-lean amine solvent3 Mar 2026US 12,564,812 B2Zhejiang University
- System and method for solar-driven photothermal seawater desalination and ion electroosmosis power generation10 Feb 2026US 12,545,604 B2Xi' An Jiaotong University
- Systems, devices, and methods for electrodialysis-based home-scale desalination13 Aug 2026US 2026/0234033 A1Massachusetts Institute of Technology
- Chemically enhanced electrodialysis (ceed): a universal platform for selective ion removal30 Jul 2026US 2026/0216660 A1Texas Tech University System
- Regenerating method of electrodeionization system and method for purifying hydrogen peroxide by using same23 Jul 2026US 2026/0208116 A1
- Method for purifying hydrogen peroxide23 Jul 2026US 2026/0209040 A1
- Systems and methods for electrochemical extraction of a target ion18 Jun 2026US 2026/0166491 A1Vanderbilt University
Most cited
By later US patents
- Automatic flushing system for membrane separation machines such as reverse osmosis machines177US 3,992,301 ARaypak, Inc. · 1976
- Production of purified water and high value chemicals from salt water85US 7,083,730 B2University of South Carolina · 2006
- Water treatment system and method83US 7,083,733 B2USFilter Corporation · 2006
- Laminated glass with functional ultra-fine particles and method of producing same81US 5,830,568 ACentral Glass Company, Limited · 1998
- Method and apparatus for the purification of water80US 4,465,573 A1984