C01B 2203/1258
Pre-treatment of the feed
C01B2203/1258 (Pre-treatment of the feed) appears on 800 US grants and 992 published applications in this corpus.
Search patents in C01B- Granted patents
- 800
- Published applications
- 992
- Assignees
- 389
- Inventors
- 1,871
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 6 | 0 |
| 1989 | 11 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 3 | 0 |
| 2000 | 26 | 0 |
| 2001 | 21 | 6 |
| 2002 | 19 | 31 |
| 2003 | 18 | 35 |
| 2004 | 24 | 46 |
| 2005 | 19 | 41 |
| 2006 | 26 | 36 |
| 2007 | 10 | 24 |
| 2008 | 23 | 41 |
| 2009 | 15 | 39 |
| 2010 | 25 | 53 |
| 2011 | 25 | 54 |
| 2012 | 38 | 40 |
| 2013 | 35 | 42 |
| 2014 | 28 | 38 |
| 2015 | 44 | 44 |
| 2016 | 49 | 41 |
| 2017 | 43 | 50 |
| 2018 | 39 | 32 |
| 2019 | 23 | 29 |
| 2020 | 16 | 19 |
| 2021 | 21 | 36 |
| 2022 | 18 | 41 |
| 2023 | 28 | 56 |
| 2024 | 26 | 58 |
| 2025 | 31 | 44 |
| 2026 | 16 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for preparing synthesis gas6 Oct 2026US 12,753,074 B2LG Chem.Ltd.
- Process and apparatus for cracking ammonia22 Sep 2026US 12,741,867 B2Air Products and Chemicals, Inc.
- Device for continuously producing hydrogen from polyester plastics by photocatalytic degradation15 Sep 2026US 12,734,500 B2Tianjin University
- Process and plant for producing pure hydrogen by steam reforming with low carbon dioxide emissions25 Aug 2026US 12,715,766 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Synthesis gas production from CO2 and steam for synthesis of fuels16 Jun 2026US 12,655,074 B2Topsoe A/S
- System and method for sustainable processing of fossil fuels or subsurface comodities to reduce greenhouse gases while sequestering and repurposing alternative energy components17 Sep 2026US 2026/0274658 A1BIA Integrated Solutions, Inc.
- System and method for processing natural gas to remove carbon and produce hydrogen17 Sep 2026US 2026/0274660 A1BIA Integrated Solutions, Inc.
- Process for producing hydrogen10 Sep 2026US 2026/0265053 A1Johnson Matthey Davy Technologies Limited
- Method for production of clean hydrogen20 Aug 2026US 2026/0242217 A1Posco Holdings Inc.
- Plant and process for producing hydrogen from hydrocarbons20 Aug 2026US 2026/0242219 A1Technip Energies France
Most cited
By later US patents
- Microcomponent chemical process sheet architecture299US 5,811,062 ABattelle Memorial Institute · 1998
- Hydrogen producing fuel processing system236US 6,221,117 B1IdaTech, LLC · 2001
- Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions202US 5,306,411 AThe Standard Oil Company · 1994
- Microcomponent assembly for efficient contacting of fluid191US 6,126,723 ABattelle Memorial Institute · 2000
- Method and system for supplying hydrogen for use in fuel cells190US 6,348,278 B1Mobil Oil Corporation · 2002