F25J 3/0403
Of nitrogen
Official title: {of nitrogen}
F25J3/0403 (Of nitrogen) appears on 43 US grants and 29 published applications in this corpus.
Search patents in F25J- Granted patents
- 43
- Published applications
- 29
- Assignees
- 28
- Inventors
- 97
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 3 |
| 2019 | 3 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants30 Dec 2025US 12,510,294 B2Linde Aktiengesellschaft
- Controlled hydrolysis of hazardous silicon polymer residue16 Apr 2024US 11,958,022 B2High-Purity Silicon Corporation
- Method and device for producing air product based on cryogenic rectification14 Feb 2023US 11,578,916 B2L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georqes Claude
- Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air26 Nov 2019US 10,488,106 B2Linde Aktiengesellschaft
- Method and device for the low-temperature separation of air at variable energy consumption29 Oct 2019US 10,458,702 B2Linde Aktingesellschaft
- Process and apparatus for separating a gas mixture5 Feb 2026US 2026/0036365 A1L'Air Liquide, Société Anonyme pour I'Etube et I'Exploitation des Procédés Georges Claude
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants1 Jun 2023US 2023/0168030 A1Linde Aktiengesellschaft
- Low-pressure nitrogen turbine with air booster parallel to the booster air compressor6 Apr 2023US 2023/0103843 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Method and apparatus for producing high-pressure nitrogen28 Apr 2022US 2022/0128301 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Controlled Hydrolysis of Hazardous Silicon Polymer Residue7 Apr 2022US 2022/0105477 A1Mitsubishi Polycrystalline Silicon America Corporation (MIPSA)
Most cited
By later US patents
- Closed cycle gas turbine for gaseous production199US 4,434,613 AGeneral Electric Company · 1984
- Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas140US 5,295,350 ATexaco Inc. · 1994
- Air separation process and system with gas turbine drivers97US 6,345,493 B1Air Products and Chemicals, Inc. · 2002
- Air separation process integrated with gas turbine combustion engine driver95US 6,263,659 B1Air Products and Chemicals, Inc. · 2001
- Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas75US 5,394,686 ATexaco Inc. · 1995