B01J 8/04
The fluid passing successively through two or more beds
Official title: the fluid passing successively through two or more beds
B01J8/04 (The fluid passing successively through two or more beds) appears on 1,744 US grants and 1,718 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,744
- Published applications
- 1,718
- Assignees
- 718
- Inventors
- 4,024
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 14 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 16 | 0 |
| 1987 | 10 | 0 |
| 1988 | 17 | 0 |
| 1989 | 18 | 0 |
| 1990 | 16 | 0 |
| 1991 | 18 | 0 |
| 1992 | 13 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 24 | 0 |
| 1996 | 20 | 0 |
| 1997 | 18 | 0 |
| 1998 | 34 | 0 |
| 1999 | 32 | 0 |
| 2000 | 34 | 0 |
| 2001 | 41 | 20 |
| 2002 | 27 | 72 |
| 2003 | 27 | 55 |
| 2004 | 43 | 81 |
| 2005 | 27 | 57 |
| 2006 | 52 | 70 |
| 2007 | 44 | 65 |
| 2008 | 38 | 48 |
| 2009 | 49 | 62 |
| 2010 | 62 | 77 |
| 2011 | 52 | 68 |
| 2012 | 50 | 65 |
| 2013 | 59 | 53 |
| 2014 | 50 | 63 |
| 2015 | 67 | 64 |
| 2016 | 61 | 89 |
| 2017 | 71 | 71 |
| 2018 | 77 | 74 |
| 2019 | 74 | 84 |
| 2020 | 82 | 100 |
| 2021 | 80 | 93 |
| 2022 | 54 | 49 |
| 2023 | 57 | 56 |
| 2024 | 37 | 62 |
| 2025 | 44 | 66 |
| 2026 | 22 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalyst reactor15 Sep 2026US 12,734,473 B2Taiyuan University of Technology
- Liquid plasma discharge device and method for biodiesel synthesis using same15 Sep 2026US 12,734,499 B2Regents of the University of Minnesota
- Propylene oxide production apparatus and propylene oxide production method25 Aug 2026US 12,714,977 B2Sumitomo Chemical Company, Limited
- Adiabatic multi-stage reactors for hydrogen production and related systems and methods4 Aug 2026US 12,698,204 B2Saudi Arabian Oil Company
- Unit for producing and separating aromatics with recovery of an extract and/or raffinate from a liquid-liquid extraction process28 Jul 2026US 12,692,447 B2Ifp Energies Nouvelles
- Steam-Hydrocarbon Reforming with Reduced Carbon Dioxide Emissions8 Oct 2026US 2026/0307987 A1Air Products and Chemicals, Inc.
- Ammonia Synthesis Converter and Method for Small Production Units8 Oct 2026US 2026/0308001 A1AmmPower America LLC
- Continuous hydrodeoxygenation of lignin to jet-range aromatic hydrocarbons24 Sep 2026US 2026/0286234 A1Alliance for Energy Innovation, LLC
- Methanol Production System that Reuses Unreacted Gas for Efficient Methanol Production10 Sep 2026US 2026/0264037 A1Doosan Enerbility Co., Ltd.
- Process for producing hydrogen10 Sep 2026US 2026/0265053 A1Johnson Matthey Davy Technologies Limited
Most cited
By later US patents
- Steam reformer with internal hydrogen purification533US 5,861,137 A1999
- Steam reformer with internal hydrogen purification269US 5,997,594 ANorthwest Power Systems, LLC · 1999
- Hydrogen producing fuel processing system236US 6,221,117 B1IdaTech, LLC · 2001
- Fuel cell system with combustor-heated reformer172US 6,077,620 AGeneral Motors Corporation · 2000
- Integrated hydrocarbon reforming system and controls150US 6,641,625 B1Nuvera Fuel Cells, LLC · 2003