B01D 2321/44
Specific cleaning apparatus
B01D2321/44 (Specific cleaning apparatus) appears on 24 US grants and 50 published applications in this corpus.
Search patents in B01D- Granted patents
- 24
- Published applications
- 50
- Assignees
- 47
- Inventors
- 157
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 3 |
| 2018 | 1 | 5 |
| 2019 | 5 | 4 |
| 2020 | 2 | 3 |
| 2021 | 2 | 4 |
| 2022 | 4 | 2 |
| 2023 | 0 | 2 |
| 2024 | 2 | 5 |
| 2025 | 1 | 3 |
| 2026 | 1 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Methods for treating porous membranes24 Mar 2026US 12,582,944 B2Apache Corporation
- Hot water cart conditioning system and method12 Aug 2025US 12,383,869 B2Evoqua Water Technologies LLC
- Air separation module (ASM) contamination apparatus and removal process29 Oct 2024US 12,128,457 B2AeroParts Manufacturing & Repair, Inc.
- Vanox hot water cart conditioning method7 May 2024US 11,975,294 B2Evoqua Water Technologies LLC
- Air bubble generation device7 Jun 2022US 11,351,506 B2Meidensha Corporation
- Method and device for regenerating inorganic porous gas separation membrane13 Aug 2026US 2026/0233167 A1Jgc Corporation
- Processing method for polyamide-based semipermeable membrane, production method and processing apparatus for semipermeable membrane element, and fluid processing method and fluid processing apparatus each using semipermeable membrane element23 Jul 2026US 2026/0208120 A1Toray Industries, Inc.
- Composite filter and water purifier including same4 Jun 2026US 2026/0152414 A1Coway Co., Ltd.
- Filter cleaning methods and apparatuses9 Apr 2026US 2026/0097367 A1Taiwan Semiconductor Manufacturing Company.Ltd
- System and methods for mimicking membrane cleaning-in-place conditions9 Apr 2026US 2026/0097368 A1Ecolab USA Inc.
Most cited
By later US patents
- Fluid treatment system13US 7,316,774 B2Kinetico Incorporated · 2008
- Sludge flocculator-separator for the physico-chemical treatment of water12US 7,601,261 B2Acciona Agua, S.A.U. · 2009
- Process for continuously washing a hollow fiber membrane for depleting residuals4US 9,527,040 B2Gambro Lundia AB · 2016
- Water treatment system3US 8,137,542 B2Kabushiki Kaisha Toshiba · 2012
- Systems and methods for treating oilfield wastewater2US 10,364,173 B2FMC Technologies, Inc. · 2019