C01B 2203/068
Ammonia synthesis
C01B2203/068 (Ammonia synthesis) appears on 345 US grants and 494 published applications in this corpus.
Search patents in C01B- Granted patents
- 345
- Published applications
- 494
- Assignees
- 176
- Inventors
- 763
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 3 |
| 2003 | 3 | 5 |
| 2004 | 1 | 5 |
| 2005 | 2 | 3 |
| 2006 | 6 | 5 |
| 2007 | 3 | 7 |
| 2008 | 3 | 9 |
| 2009 | 3 | 14 |
| 2010 | 8 | 19 |
| 2011 | 6 | 19 |
| 2012 | 7 | 15 |
| 2013 | 6 | 6 |
| 2014 | 10 | 37 |
| 2015 | 15 | 29 |
| 2016 | 31 | 23 |
| 2017 | 18 | 27 |
| 2018 | 21 | 20 |
| 2019 | 19 | 27 |
| 2020 | 23 | 28 |
| 2021 | 29 | 30 |
| 2022 | 9 | 32 |
| 2023 | 20 | 36 |
| 2024 | 33 | 37 |
| 2025 | 16 | 35 |
| 2026 | 14 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Autonomous modular flare gas conversion systems and methods6 Oct 2026US 12,753,138 B2M2X Energy Inc.
- Nuclear reactor integrated oil and gas production systems and methods of operation6 Oct 2026US 12,753,674 B2Natura Resources LLC
- Purge gas conditioning of NH3 plants15 Sep 2026US 12,735,325 B2Stamicarbon B. V.
- Direct reduced iron system and method21 Jul 2026US 12,686,893 B2Nucor Corporation
- Use of renewable energy in methanol synthesis14 Jul 2026US 12,678,760 B2Sabic Global Technologies B.V.
- Autonomous Modular Flare Gas Conversion Systems and Methods8 Oct 2026US 2026/0308093 A1M2X Energy Inc.
- Process for producing low-carbon ammonia from natural gas24 Sep 2026US 2026/0285696 A1Publichnoe Aktsionernoe Obshchestvo "NOVATEK"
- Production and/or regasification of bio-lng20 Aug 2026US 2026/0242672 A1Iogen Corporation
- Method for producing ammonia with reduced emissions and system thereof13 Aug 2026US 2026/0234011 A1Yara Clean Ammonia AS
- Method for controlling a heat-consuming hydrocarbon conversion process13 Aug 2026US 2026/0234478 A1BASF SE
Most cited
By later US patents
- Catalytic ceramic membrane steam-hydrocarbon reformer269US 5,229,102 AMedalert Corporation · 1993
- Methanol plant retrofit for acetic acid manufacture208US 6,232,352 B1Acetex limited · 2001
- Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system186US 6,821,501 B2Shell Oil Company · 2004
- Reactor-membrane permeator process for hydrocarbon reforming and water gas-shift reactions135US 6,090,312 A2000
- Catalytic ceramic membrane steam/hydrocarbon reformer128US 4,981,676 A1991