B01J 19/244
Concentric tubes
Official title: {Concentric tubes}
B01J19/244 (Concentric tubes) appears on 87 US grants and 117 published applications in this corpus.
Search patents in B01J- Granted patents
- 87
- Published applications
- 117
- Assignees
- 97
- Inventors
- 313
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 0 | 4 |
| 2005 | 4 | 5 |
| 2006 | 0 | 3 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 6 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 6 |
| 2013 | 2 | 7 |
| 2014 | 3 | 1 |
| 2015 | 5 | 2 |
| 2016 | 0 | 5 |
| 2017 | 2 | 2 |
| 2018 | 4 | 4 |
| 2019 | 4 | 4 |
| 2020 | 4 | 8 |
| 2021 | 7 | 15 |
| 2022 | 6 | 8 |
| 2023 | 9 | 13 |
| 2024 | 11 | 11 |
| 2025 | 8 | 5 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Reforming device27 Aug 2026US 2026/0249266 A1Kabushiki Kaisha Toyota Jidoshokki
- Apparatus for production of ammonium nitrate from nitric acid and ammonia13 Aug 2026US 2026/0233190 A1thyssenkrupp AG
- Mixing reactors23 Jul 2026US 2026/0208147 A1Promethean Particles Ltd
- Flow reactor16 Apr 2026US 2026/0102752 A1Panasonic Intellectual Property Management Co., Ltd.
- Reactor vessel and methods of manufacturing2 Apr 2026US 2026/0091366 A1Aerospace Carbon Solutions LLC
Most cited
By later US patents
- Stackable structural reactor34US 7,906,079 B2Catacel Corp. · 2011
- Process for the nitration of aromatic compounds29US 5,763,697 AJosef Meissner GmbH & Co. KG · 1998
- Apparatus for the controlled optimized addition of reactants in continuous flow reaction systems25US 6,977,064 B1Saudi Basic Industries Corporation · 2005
- Process for the preparation of diisocyanates22US 6,930,199 B2Bayer MaterialSceince AG · 2005
- Partial oxidation reactor14US 7,625,414 B2Institut Francais du Petrole · 2009