B01J 8/0449
In two or more cylindrical beds
Official title: {in two or more cylindrical beds}
B01J8/0449 (In two or more cylindrical beds) appears on 766 US grants and 736 published applications in this corpus.
Search patents in B01J- Granted patents
- 766
- Published applications
- 736
- Assignees
- 364
- Inventors
- 1,897
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 9 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 15 | 0 |
| 1996 | 13 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 17 | 0 |
| 2000 | 14 | 0 |
| 2001 | 17 | 8 |
| 2002 | 14 | 25 |
| 2003 | 8 | 26 |
| 2004 | 16 | 32 |
| 2005 | 8 | 21 |
| 2006 | 20 | 35 |
| 2007 | 20 | 24 |
| 2008 | 19 | 19 |
| 2009 | 21 | 24 |
| 2010 | 22 | 35 |
| 2011 | 17 | 32 |
| 2012 | 28 | 30 |
| 2013 | 27 | 24 |
| 2014 | 20 | 27 |
| 2015 | 31 | 40 |
| 2016 | 33 | 33 |
| 2017 | 30 | 28 |
| 2018 | 31 | 40 |
| 2019 | 35 | 43 |
| 2020 | 43 | 42 |
| 2021 | 32 | 34 |
| 2022 | 23 | 23 |
| 2023 | 24 | 30 |
| 2024 | 15 | 18 |
| 2025 | 21 | 27 |
| 2026 | 11 | 16 |
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
- Process and apparatus for cracking ammonia26 May 2026US 12,637,350 B2Air Products and Chemicals, Inc.
- Paraffin dehydrogenation reactor electric heater21 Apr 2026US 12,606,503 B2Lummus Technology Inc.
- Catalytic conversion method of carbonaceous fuel into synthesis gas and apparatus for catalytic conversion of carbonaceous fuel into synthesis gas27 Aug 2026US 2026/0250128 A1
- Reaction Device20 Aug 2026US 2026/0241358 A1LG Chem.Ltd.
- Apparatus and method for production of syngas6 Aug 2026US 2026/0225057 A1Council of Scientific and Industrial Research
- Feedstock to aromatic hydrocarbons conversion via formaldehyde route in dual bed reactor30 Jul 2026US 2026/0217624 A1King Abdullah University of Science and Technology
- Paraffin dehydrogenation reactor electric heater30 Jul 2026US 2026/0217629 A1Lummus Technology Inc.
Most cited
By later US patents
- Combined reformer and shift reactor121US 5,458,857 AROLLS-ROYCE plc · 1995
- Structured fischer-tropsch catalyst system and method114US 6,262,131 B1Syntroleum Corporation · 2001
- Use of catalytic distillation reactor for methanol synthesis113US 6,723,886 B2ConocoPhillips Company · 2004
- Conversion of methanol to gasoline components109US 4,058,576 AMobil Oil Corporation · 1977
- Upflow reactor system with layered catalyst bed for hydrotreating heavy feedstocks100US 6,554,994 B1Chevron U.S.A.Inc. · 2003