B01D 2256/16
Hydrogen
B01D2256/16 (Hydrogen) appears on 1,162 US grants and 1,547 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,162
- Published applications
- 1,547
- Assignees
- 655
- Inventors
- 3,294
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 8 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 9 | 0 |
| 1988 | 16 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 13 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 3 |
| 2002 | 15 | 12 |
| 2003 | 17 | 17 |
| 2004 | 9 | 13 |
| 2005 | 11 | 23 |
| 2006 | 11 | 28 |
| 2007 | 10 | 23 |
| 2008 | 20 | 37 |
| 2009 | 19 | 35 |
| 2010 | 25 | 66 |
| 2011 | 24 | 42 |
| 2012 | 40 | 62 |
| 2013 | 48 | 49 |
| 2014 | 44 | 58 |
| 2015 | 41 | 49 |
| 2016 | 36 | 77 |
| 2017 | 55 | 58 |
| 2018 | 55 | 78 |
| 2019 | 57 | 96 |
| 2020 | 61 | 93 |
| 2021 | 64 | 94 |
| 2022 | 75 | 121 |
| 2023 | 77 | 99 |
| 2024 | 66 | 108 |
| 2025 | 69 | 118 |
| 2026 | 45 | 88 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- Autonomous modular flare gas conversion systems and methods6 Oct 2026US 12,753,138 B2M2X Energy Inc.
- Catalyst reactor15 Sep 2026US 12,734,473 B2Taiyuan University of Technology
- Plasma treatment in sulfur recovery8 Sep 2026US 12,728,387 B2Saudi Arabian Oil Company
- Adsorbent material, adsorption system, and adsorption process for hydrogen recovery8 Sep 2026US 12,729,116 B2Air Products and Chemicals, Inc.
- Hydrogen generation device8 Oct 2026US 2026/0307031 A1
- Hydrogen generation apparatus8 Oct 2026US 2026/0307037 A1
- Steam-Hydrocarbon Reforming with Reduced Carbon Dioxide Emissions8 Oct 2026US 2026/0307987 A1Air Products and Chemicals, Inc.
- Autonomous Modular Flare Gas Conversion Systems and Methods8 Oct 2026US 2026/0308093 A1M2X Energy Inc.
- Co2 capture and hydrogen recovery from fuel cell anode off gas8 Oct 2026US 2026/0312104 A1Uop LLC
Most cited
By later US patents
- High temperature fuel cell power plant165US 7,097,925 B2QuestAir Technologies Inc. · 2006
- Process for purifying a gas by adsorption of the impurities on several active carbons147US 6,402,813 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2002
- Method and apparatus for treating a sour gas146US 8,206,669 B2Air Products and Chemicals, Inc. · 2012
- Selective adsorption process139US 3,986,849 AUnion Carbide Corporation · 1976
- Process for separating components of a gas stream137US 4,701,187 AAir Products and Chemicals, Inc. · 1987