B01J 3/04
Pressure vessels
Official title: Pressure vessels, e.g. autoclaves
B01J3/04 (Pressure vessels) appears on 573 US grants and 403 published applications in this corpus.
Search patents in B01J- Granted patents
- 573
- Published applications
- 403
- Assignees
- 410
- Inventors
- 1,394
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 12 | 0 |
| 1978 | 15 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 13 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 14 | 0 |
| 1996 | 12 | 0 |
| 1997 | 12 | 0 |
| 1998 | 12 | 0 |
| 1999 | 16 | 0 |
| 2000 | 19 | 0 |
| 2001 | 10 | 0 |
| 2002 | 9 | 10 |
| 2003 | 9 | 18 |
| 2004 | 15 | 14 |
| 2005 | 9 | 7 |
| 2006 | 11 | 6 |
| 2007 | 8 | 10 |
| 2008 | 3 | 11 |
| 2009 | 7 | 13 |
| 2010 | 7 | 12 |
| 2011 | 7 | 15 |
| 2012 | 5 | 9 |
| 2013 | 11 | 10 |
| 2014 | 9 | 18 |
| 2015 | 13 | 14 |
| 2016 | 10 | 12 |
| 2017 | 16 | 16 |
| 2018 | 15 | 21 |
| 2019 | 16 | 17 |
| 2020 | 21 | 27 |
| 2021 | 19 | 32 |
| 2022 | 12 | 27 |
| 2023 | 24 | 29 |
| 2024 | 23 | 21 |
| 2025 | 18 | 19 |
| 2026 | 8 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Underdrain for media vessel and method of cleaning18 Aug 2026US 12,708,934 B2Bl Technologies, Inc.
- Reactor arrangement and method for decomposing objects consisting of plastic-based composite materials16 Jun 2026US 12,655,264 B2Hanseatic Rohr GmbH
- Pressure vessel system12 May 2026US 12,623,195 B2Mikrowellen Labor Technik AG
- System for implantation by sterilisation techniques28 Apr 2026US 12,611,475 B2Universidade De Santiago De Compostela
- System and method for regulating aluminum precipitation during high-pressure acid leaching of laterite nickel ore7 Apr 2026US 12,595,530 B2Gem Co., Ltd.
- Biomass processing system for treatment of biomass material8 Oct 2026US 2026/0308845 A1Valmet Corporation
- Supercritical fluid - electrolysis linked recycling apparatus and method of use thereof24 Sep 2026US 2026/0285781 A1
- High-pressure reactor27 Aug 2026US 2026/0250800 A1Gem Co., Ltd.
- Segmented reactor for hydrothermal synthesis in desulfurization gypsum quality improvement30 Jul 2026US 2026/0216686 A1Xi' An Jiaotong University
- Method for producing organically modified inorganic fine particle and organically modified inorganic fine particle2 Jul 2026US 2026/0184928 A1Super Nano Design Co., Ltd.
Most cited
By later US patents
- Apparatus and method for combinatorial chemistry synthesis210US 6,045,755 ATrega Biosciences, Inc. · 2000
- Process for producing single wall nanotubes using unsupported metal catalysts146US 6,221,330 B1Hyperion Catalysis International, Inc. · 2001
- Gas control system for chemical vapor deposition system110US 4,369,031 AThermco Products Corporation · 1983
- Gas-phase nucleation and growth of single-wall carbon nanotubes from high pressure CO99US 6,761,870 B1William Marsh Rice University · 2004
- Method for preserving blood platelets94US 6,413,713 B1Hyperbaric Systems, Inc. · 2002