F25J 1/0015
Nitrogen
Official title: {Nitrogen}
F25J1/0015 (Nitrogen) appears on 146 US grants and 166 published applications in this corpus.
Search patents in F25J- Granted patents
- 146
- Published applications
- 166
- Assignees
- 81
- Inventors
- 349
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 0 |
| 2003 | 6 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 6 |
| 2007 | 2 | 3 |
| 2008 | 1 | 4 |
| 2009 | 4 | 3 |
| 2010 | 1 | 5 |
| 2011 | 2 | 8 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 6 |
| 2015 | 1 | 8 |
| 2016 | 2 | 8 |
| 2017 | 5 | 17 |
| 2018 | 5 | 11 |
| 2019 | 7 | 5 |
| 2020 | 8 | 5 |
| 2021 | 7 | 13 |
| 2022 | 3 | 12 |
| 2023 | 6 | 16 |
| 2024 | 11 | 12 |
| 2025 | 8 | 10 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and a relative apparatus for producing liquified gases8 Sep 2026US 12,729,906 B2Fpt Industrial S.P.A.
- Refrigeration-integrated hydrocarbon collection system and method of operation25 Aug 2026US 12,716,649 B2Oxy Low Carbon Ventures, LLC
- Device for producing liquid from flue gas with low energy consumption and method for using same23 Jun 2026US 12,663,209 B1Hangzhou Oxygenplant Group Co., Ltd.
- Device and method for recovering gas with variable low-temperature23 Jun 2026US 12,663,210 B2Hangzhou Oxygen Plant Group Co., Ltd.
- System for storing and producing energy to stabilize the power network26 May 2026US 12,638,234 B2Saipem S.P.A.
- Method for supplying gaseous nitrogen and liquefying nitrogen8 Oct 2026US 2026/0309410 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Solid-cryogen encapsulation system13 Aug 2026US 2026/0235349 A1The United States of America as represented by the Secretary of the Navy
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
- Temperature-control device for controlling the temperature of a fluid and a method for controlling the temperature of a fluid12 Mar 2026US 2026/0071788 A1Helmholtz-Zentrum Dresden-Rossendorf E. V.
- System and method for simultaneously producing high-purity liquid nitrogen and high-purity liquid carbon dioxide at low cost by using flue gas26 Feb 2026US 2026/0055956 A1Hangzhou Oxygen Plant Group Co., Ltd.
Most cited
By later US patents
- Ericsson cycle machine93US 4,984,432 A1991
- Multicomponent refrigerant cooling with internal recycle78US 6,065,305 APraxair Technology, Inc. · 2000
- Liquefied natural gas refrigeration transfer to a cryogenics air separation unit using high presure nitrogen stream67US 5,137,558 AAir Products and Chemicals, Inc. · 1992
- Incorporated cascade cooling cycle for liquefying a gas by regasifying liquefied natural gas48US 4,054,433 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1977
- Production of liquid nitrogen using liquefied natural gas as sole refrigerant48US 5,139,547 AAir Products and Chemicals, Inc. · 1992