F25J 3/04818
Start-up of the process
Official title: {Start-up of the process}
F25J3/04818 (Start-up of the process) appears on 28 US grants and 30 published applications in this corpus.
Search patents in F25J- Granted patents
- 28
- Published applications
- 30
- Assignees
- 14
- Inventors
- 78
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 0 |
| 2006 | 2 | 3 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 4 |
| 2020 | 3 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 3 |
| 2023 | 0 | 1 |
| 2024 | 3 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for operating an air separation plant, having a distillation column system, a heat exchanger and an adsorber, and air separation plant14 Oct 2025US 12,442,593 B2Linde Aktiengesellschaft
- Method for starting up an argon separation column of an apparatus for air separation by cryogenic distillation and unit for implementing the method27 May 2025US 12,313,336 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Apparatus and method for separation of air by cryogenic distillation31 Dec 2024US 12,181,217 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Air separation device and air separation method22 Oct 2024US 12,123,647 B2Taiyo Nippon Sanso Corporation
- Method for starting up a cryogenic air separation unit and associated air separation unit13 Aug 2024US 12,061,045 B2L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- 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
- Air separation system and air separation method2 Jan 2025US 2025/0003679 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for restarting an air separation unit29 Feb 2024US 2024/0068746 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for operating an air separation plant, having a distillation column system, a heat exchanger and an adsorber, and air separation plant5 Jan 2023US 2023/0003446 A1Linde Aktiengesellschaft
- Air separation device and air separation method11 Aug 2022US 2022/0252344 A1Taiyo Nippon Sanso Corporation
Most cited
By later US patents
- Integrated method of air separation and of energy generation and plant for the implementation of such a method46US 6,612,113 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2003
- Integrated air-separation/energy-generation process and plant for implementing such a process45US 6,550,234 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2003
- Vaporization-condensation apparatus for air distillation double column, and air distillation equipment including such apparatus22US 5,071,458 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1991
- Process and apparatus for the production of gaseous nitrogen and system for supplying corresponding nitrogen7US 5,157,927 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1992
- Process for recovering nitrogen in low pressure type air separation apparatus6US 4,299,607 AHitachi, Ltd. · 1981