F25J 3/04745
Krypton and/or xenon
Official title: {Krypton and/or Xenon}
F25J3/04745 (Krypton and/or xenon) appears on 52 US grants and 34 published applications in this corpus.
Search patents in F25J- Granted patents
- 52
- Published applications
- 34
- Assignees
- 14
- Inventors
- 113
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 0 |
| 2003 | 3 | 3 |
| 2004 | 3 | 3 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 3 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid recovery process and apparatus for xenon and or krypton recovery1 Oct 2024US 12,104,850 B2Air Products and Chemicals, Inc.
- High-purity oxygen production system23 Jan 2024US 11,879,685 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Adsorptive xenon recovery process from a gas or liquid stream at cryogenic temperature16 May 2023US 11,650,010 B2Praxair Technology, Inc.
- Recovery of krypton and xenon from liquid oxygen4 Oct 2022US 11,460,246 B2Air Products and Chemicals, Inc.
- Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air26 Nov 2019US 10,488,106 B2Linde Aktiengesellschaft
- Method for cryogenic separation of air, and air separation plant10 Sep 2026US 2026/0266538 A1
- Method for obtaining xenon using a molecular sieve20 Aug 2026US 2026/0242223 A1Linde Aktiengesellschaft
- Process and apparatus for intermittent liquefaction operation that can support continuous air separation processing6 Aug 2026US 2026/0227123 A1Air Products and Chemicals, Inc.
- Process and Apparatus for Xenon and or Krypton Recovery14 Nov 2024US 2024/0375958 A1Air Products and Chemicals, Inc.
- Fluid recovery process and apparatus for xenon and or krypton recovery10 Nov 2022US 2022/0357104 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- Process for producing xenon49US 5,039,500 AKyodo Oxygen Co., Ltd. · 1991
- Process and apparatus for the recovery of krypton and/or xenon36US 6,694,775 B1Air Products and Chemicals, Inc. · 2004
- Process for purifying a gas and apparatus for the implementation of such a process32US 5,993,612 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1999
- Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide22US 5,685,172 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1997
- Process to produce a krypton-xenon concentrate and a gaseous oxygen product21US 4,568,528 AUnion Carbide Corporation · 1986