B01J 2219/3325
Counter-current flow
B01J2219/3325 (Counter-current flow) appears on 72 US grants and 86 published applications in this corpus.
Search patents in B01J- Granted patents
- 72
- Published applications
- 86
- Assignees
- 51
- Inventors
- 224
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 3 |
| 2002 | 4 | 5 |
| 2003 | 4 | 5 |
| 2004 | 4 | 11 |
| 2005 | 4 | 5 |
| 2006 | 3 | 2 |
| 2007 | 1 | 4 |
| 2008 | 3 | 2 |
| 2009 | 4 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 2 |
| 2015 | 4 | 1 |
| 2016 | 2 | 5 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 2 | 3 |
| 2020 | 1 | 8 |
| 2021 | 6 | 6 |
| 2022 | 7 | 4 |
| 2023 | 5 | 3 |
| 2024 | 4 | 5 |
| 2025 | 3 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High surface-area contactor media for improved gas-liquid contactors18 Nov 2025US 12,472,461 B2Intrls, Inc.
- Countercurrent contacting devices11 Feb 2025US 12,220,674 B2Koch-Glitsch, LP
- Systems and methods for processing gases4 Feb 2025US 12,215,026 B2Transform Materials LLC
- Structured packing for gas phase reactor31 Dec 2024US 12,179,167 B2Julius Montz GmbH
- Method of loading a tubular reactor with a catalyst tube assembly, and a catalyst tube assembly for a tubular reactor19 Nov 2024US 12,145,143 B2Technip Energies France
- Reactor with counter helical flow channels and method of using same17 Sep 2026US 2026/0273500 A1Corning Incorporated
- High surface-area contactor media for improved gas-liquid contactors19 Mar 2026US 2026/0077297 A1Intrnls, Inc.
- High surface-area contactor media for improved gas-liquid contactors19 Jun 2025US 2025/0196056 A1Intrls, Inc.
- Packing for a rotating packed bed29 May 2025US 2025/0170549 A1Carbon Clean Solutions Limited
- Liquid-liquid extraction column with variable inter-tray space20 Feb 2025US 2025/0058248 A1Ifp Energies Nouvelles
Most cited
By later US patents
- Controlled reactant injection with permeable plates54US 6,749,817 B1Uop LLC · 2004
- Column gas-liquid contacting apparatus and its use thereof43US 6,423,235 B1Nittetu Chemical Engineering Ltd. · 2002
- Liquid distributor in mass transfer column and method of installation and use34US 6,722,639 B2Koch-Glitsch, LP · 2004
- Packing for column27US 7,014,175 B22006
- Pulse flow reaction26US 6,774,275 B2Catalytic Distillation Technologies · 2004