C01B 3/56
By contacting with solids
Official title: by contacting with solids; Regeneration of used solids
C01B3/56 (By contacting with solids) appears on 1,251 US grants and 1,530 published applications in this corpus.
Search patents in C01B- Granted patents
- 1,251
- Published applications
- 1,530
- Assignees
- 610
- Inventors
- 3,166
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 13 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 10 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 13 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 20 | 0 |
| 2000 | 31 | 0 |
| 2001 | 31 | 14 |
| 2002 | 31 | 63 |
| 2003 | 41 | 65 |
| 2004 | 41 | 58 |
| 2005 | 27 | 66 |
| 2006 | 28 | 71 |
| 2007 | 36 | 63 |
| 2008 | 49 | 63 |
| 2009 | 41 | 57 |
| 2010 | 54 | 92 |
| 2011 | 54 | 62 |
| 2012 | 62 | 63 |
| 2013 | 50 | 54 |
| 2014 | 47 | 37 |
| 2015 | 39 | 48 |
| 2016 | 37 | 50 |
| 2017 | 38 | 35 |
| 2018 | 35 | 56 |
| 2019 | 43 | 43 |
| 2020 | 39 | 47 |
| 2021 | 35 | 55 |
| 2022 | 31 | 74 |
| 2023 | 48 | 67 |
| 2024 | 47 | 83 |
| 2025 | 47 | 91 |
| 2026 | 29 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method embodiments for treating produced water using supercritical water desalination coupled with supercritical water oxidation6 Oct 2026US 12,753,101 B1Triad National Security, LLC
- 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
- Adsorbent material, adsorption system, and adsorption process for hydrogen recovery8 Sep 2026US 12,729,116 B2Air Products and Chemicals, Inc.
- 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
- Apparatus for producing hydrogen gas8 Oct 2026US 2026/0307988 A1Hyundai Motor Company
- Process and apparatus for hydrogen production with low carbon dioxide levels8 Oct 2026US 2026/0307989 A1
- Dehumidification apparatus, hydrogen production equipment, and method for operating dehumidification apparatus1 Oct 2026US 2026/0295515 A1Mitsubishi Heavy Industries, Ltd.
- Process for the production of caboxylic acids and carbonyl compounds by utilizing carbon dioxide-rich feedstock1 Oct 2026US 2026/0297010 A1
- Adsorbent Material, Adsorption System, and Adsorption Process For Hydrogen Recovery17 Sep 2026US 2026/0274664 A1Air Products and Chemicals, Inc.
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
- Fuel cell system with combustor-heated reformer172US 6,077,620 AGeneral Motors Corporation · 2000
- High temperature fuel cell power plant165US 7,097,925 B2QuestAir Technologies Inc. · 2006