B01D 2323/42
Details of membrane preparation apparatus
B01D2323/42 (Details of membrane preparation apparatus) appears on 276 US grants and 398 published applications in this corpus.
Search patents in B01D- Granted patents
- 276
- Published applications
- 398
- Assignees
- 234
- Inventors
- 918
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 4 |
| 2005 | 1 | 6 |
| 2006 | 1 | 3 |
| 2007 | 3 | 9 |
| 2008 | 2 | 17 |
| 2009 | 8 | 17 |
| 2010 | 12 | 19 |
| 2011 | 8 | 23 |
| 2012 | 13 | 21 |
| 2013 | 16 | 31 |
| 2014 | 11 | 25 |
| 2015 | 23 | 28 |
| 2016 | 23 | 21 |
| 2017 | 17 | 22 |
| 2018 | 20 | 26 |
| 2019 | 16 | 18 |
| 2020 | 15 | 18 |
| 2021 | 22 | 16 |
| 2022 | 9 | 19 |
| 2023 | 9 | 16 |
| 2024 | 19 | 14 |
| 2025 | 8 | 12 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Polymeric fabric19 May 2026US 12,629,920 B2Sefar AG
- Fabrication of aquaporin-based biomimetic membrane12 May 2026US 12,623,190 B2Nanyang Technological University
- Process for manufacturing a sterilizing filter31 Mar 2026US 12,589,358 B2Gambro Lundia AB
- Assembly comprising a center-fluid distributor and a multi-fiber spinneret17 Mar 2026US 12,577,705 B2Gambro Lundia AB
- On-line drying of hollow fiber membranes30 Jul 2026US 2026/0216658 A1
- Annular membrane assembly for selective carbon capture30 Jul 2026US 2026/0216664 A1Valero Services, Inc.
- 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.
- Duct organoid-on-chip23 Jul 2026US 2026/0209660 A1Dloc Biosystems, Inc.
- Electrodialysis device and method for manufacturing same4 Jun 2026US 2026/0151737 A1Posco Holdings Inc.
Most cited
By later US patents
- Radial dispersion mass transfer device having a semi-permeable tubular hollow fiber membrane wound around a porous core57US 7,172,696 B1Spectrum Laboratories, Inc. · 2007
- Hollow fiber membrane fabric - containing cartridges and modules having solvent-resistant thermoplastic tube sheets, and methods for making the same52US 5,284,584 AHoechst Celanese Corporation · 1994
- Apparatus, membranes and methods for removing organic compounds from a biological fluid46US 6,099,734 ABaxter International Inc. · 2000
- Method of making microporous filter membrane44US 7,784,619 B2Baxter International Inc. · 2010
- Microporous filter membrane, method of making microporous filter membrane and separator employing microporous filter membranes36US 7,442,303 B2Baxter International Inc. · 2008