C01B 2203/041
In-situ membrane purification during hydrogen production
C01B2203/041 (In-situ membrane purification during hydrogen production) appears on 383 US grants and 445 published applications in this corpus.
Search patents in C01B- Granted patents
- 383
- Published applications
- 445
- Assignees
- 254
- Inventors
- 917
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 15 | 7 |
| 2002 | 12 | 10 |
| 2003 | 13 | 27 |
| 2004 | 13 | 37 |
| 2005 | 12 | 23 |
| 2006 | 16 | 28 |
| 2007 | 23 | 36 |
| 2008 | 12 | 32 |
| 2009 | 12 | 22 |
| 2010 | 23 | 19 |
| 2011 | 23 | 27 |
| 2012 | 16 | 13 |
| 2013 | 19 | 9 |
| 2014 | 19 | 8 |
| 2015 | 13 | 13 |
| 2016 | 9 | 15 |
| 2017 | 5 | 9 |
| 2018 | 13 | 9 |
| 2019 | 7 | 8 |
| 2020 | 9 | 8 |
| 2021 | 12 | 14 |
| 2022 | 4 | 10 |
| 2023 | 11 | 13 |
| 2024 | 9 | 17 |
| 2025 | 14 | 22 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ethane activation systems including a composite media and related reactor apparatuses22 Sep 2026US 12,741,274 B2Battelle Energy Alliance, LLC
- Palladium-based membrane25 Aug 2026US 12,715,767 B2National University of Singapore
- Adiabatic multi-stage reactors for hydrogen production and related systems and methods4 Aug 2026US 12,698,204 B2Saudi Arabian Oil Company
- Asymmetric carbon molecular sieve hollow fiber membranes26 May 2026US 12,636,618 B1Triad National Security, LLC
- High-temperature shock heating for thermochemical reactions24 Feb 2026US 12,558,662 B2University of Maryland, College Park
- Carbon molecular membrane reactor systems, and methods for fabrication and use thereof3 Sep 2026US 2026/0257193 A1University of Maryland, College Park
- Hydrogen production from wastewater13 Aug 2026US 2026/0234030 A1Saudi Arabian Oil Company
- Multi-stage membrane reactor system for ammonia cracking to produce hydrogen6 Aug 2026US 2026/0225879 A1Saudi Arabian Oil Company
- Hydrogen Energy Storage Via Plasma-Based Technology6 Aug 2026US 2026/0225883 A1The Texas A&M University System
- Production of syngas from methane16 Jul 2026US 2026/0204606 A1Totalenergies Onetech
Most cited
By later US patents
- Steam reformer with internal hydrogen purification533US 5,861,137 A1999
- Method for simultaneous recovery of hydrogen from water and from hydrocarbons351US 5,525,322 AThe Regents of the University of California · 1996
- Hydrogen gas-extraction module and method of fabrication341US 6,152,987 AWorcester Polytechnic Institute · 2000
- Catalytic ceramic membrane steam-hydrocarbon reformer269US 5,229,102 AMedalert Corporation · 1993
- Steam reformer with internal hydrogen purification269US 5,997,594 ANorthwest Power Systems, LLC · 1999