C01B 2203/1628
Controlling the pressure
C01B2203/1628 (Controlling the pressure) appears on 191 US grants and 233 published applications in this corpus.
Search patents in C01B- Granted patents
- 191
- Published applications
- 233
- Assignees
- 146
- Inventors
- 614
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 3 |
| 2002 | 4 | 9 |
| 2003 | 8 | 11 |
| 2004 | 13 | 15 |
| 2005 | 6 | 8 |
| 2006 | 9 | 11 |
| 2007 | 7 | 6 |
| 2008 | 3 | 6 |
| 2009 | 2 | 4 |
| 2010 | 6 | 5 |
| 2011 | 8 | 8 |
| 2012 | 5 | 6 |
| 2013 | 8 | 4 |
| 2014 | 3 | 5 |
| 2015 | 2 | 2 |
| 2016 | 4 | 5 |
| 2017 | 4 | 2 |
| 2018 | 3 | 5 |
| 2019 | 2 | 4 |
| 2020 | 2 | 1 |
| 2021 | 5 | 10 |
| 2022 | 5 | 29 |
| 2023 | 16 | 17 |
| 2024 | 17 | 20 |
| 2025 | 18 | 24 |
| 2026 | 8 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Autonomous modular flare gas conversion systems and methods6 Oct 2026US 12,753,138 B2M2X Energy Inc.
- Dehydrogenation method and hydrogen production system using the same8 Sep 2026US 12,729,115 B2Hyundai Motor Company
- Methods for forming gas products from hydrocarbon feeds4 Aug 2026US 12,698,207 B2Saudi Arabian Oil Company
- Steam reforming30 Jun 2026US 12,668,488 B2Johnson Matthey Davy Technologies Limited
- Reactor for on-demand high pressure hydrogen2 Jun 2026US 12,643,788 B2Triad National Security, LLC
- Autonomous Modular Flare Gas Conversion Systems and Methods8 Oct 2026US 2026/0308093 A1M2X Energy Inc.
- Dehumidification apparatus, hydrogen production equipment, and method for operating dehumidification apparatus1 Oct 2026US 2026/0295515 A1Mitsubishi Heavy Industries, Ltd.
- Carbon dioxide reaction device1 Oct 2026US 2026/0296896 A1Yueqing Wanyin Aquarium Equipment Co., Ltd
- 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
- Hydrogen plant30 Jul 2026US 2026/0217529 A1Kawasaki Jukogyo Kabushiki Kaisha
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
- Integrated hydrocarbon reforming system and controls150US 6,641,625 B1Nuvera Fuel Cells, LLC · 2003
- Combined reformer and shift reactor121US 5,458,857 AROLLS-ROYCE plc · 1995