C01B 3/382
Processes with two or more reaction steps, of which at least one
Official title: Processes with two or more reaction steps, of which at least one is catalytic, e.g. steam reforming and partial oxidation
C01B3/382 (Processes with two or more reaction steps, of which at least one) appears on 988 US grants and 1,219 published applications in this corpus.
Search patents in C01B- Granted patents
- 988
- Published applications
- 1,219
- Assignees
- 427
- Inventors
- 2,140
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 15 | 0 |
| 2000 | 30 | 0 |
| 2001 | 25 | 12 |
| 2002 | 18 | 51 |
| 2003 | 21 | 47 |
| 2004 | 40 | 64 |
| 2005 | 28 | 59 |
| 2006 | 31 | 60 |
| 2007 | 35 | 60 |
| 2008 | 37 | 67 |
| 2009 | 36 | 60 |
| 2010 | 45 | 74 |
| 2011 | 32 | 61 |
| 2012 | 44 | 48 |
| 2013 | 48 | 37 |
| 2014 | 51 | 49 |
| 2015 | 53 | 40 |
| 2016 | 39 | 44 |
| 2017 | 39 | 38 |
| 2018 | 33 | 23 |
| 2019 | 36 | 29 |
| 2020 | 15 | 25 |
| 2021 | 20 | 40 |
| 2022 | 24 | 45 |
| 2023 | 43 | 56 |
| 2024 | 36 | 48 |
| 2025 | 28 | 51 |
| 2026 | 21 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalyst reactor15 Sep 2026US 12,734,473 B2Taiyuan University of Technology
- Steam methane reforming with process carbon dioxide capture and ammonia firing15 Sep 2026US 12,735,316 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Hybrid partial oxidation and reverse water gas shift based carbon monoxide production system1 Sep 2026US 12,722,972 B2Dioxycle
- Stable qualified clean hydrogen production process and system11 Aug 2026US 12,703,629 B2Black & Veatch Corporation
- ATR-based hydrogen process and plant16 Jun 2026US 12,655,021 B2Haldor TopsøE A/S
- Process for producing low-carbon ammonia from natural gas24 Sep 2026US 2026/0285696 A1Publichnoe Aktsionernoe Obshchestvo "NOVATEK"
- Systems, methods and techniques for hydrogen production from chemical looping systems with particle heating17 Sep 2026US 2026/0274663 A1Ohio State Innovation Foundation
- 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
- Process and plant for the production of synthesis gas and generation of process condensate20 Aug 2026US 2026/0242218 A1Topsoe A/S
- Plant and process for producing hydrogen from hydrocarbons20 Aug 2026US 2026/0242219 A1Technip Energies France
Most cited
By later US patents
- Steam reformer with internal hydrogen purification533US 5,861,137 A1999
- Method of methanol production328US 4,927,857 AEngelhard Corporation · 1990
- Synthesis gas production system and method299US 6,085,512 ASyntroleum Corporation · 2000
- Process for converting gas to liquids294US 6,172,124 B2Sybtroleum Corporation · 2001
- Steam reformer with internal hydrogen purification269US 5,997,594 ANorthwest Power Systems, LLC · 1999