Y02P 20/155
Perfluorocarbons [pfc]
Official title: Perfluorocarbons [PFC]; Hydrofluorocarbons [HFC]; Hydrochlorofluorocarbons [HCFC]; Chlorofluorocarbons [CFC]
Y02P20/155 (Perfluorocarbons [pfc]) appears on 15 US grants and 4 published applications in this corpus.
Search patents in Y02P- Granted patents
- 15
- Published applications
- 4
- Assignees
- 10
- Inventors
- 18
- Latest grant
- 27 Oct 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for separating gases from gas mixtures using hydro fluoro ether27 Oct 2020US 10,814,268 B2
- Method for removing moisture from fluorine-containing compounds13 Oct 2015US 9,156,753 B2Daikin Industries, Ltd.
- Use of molecular sieves for the removal of HFC-23 from fluorocarbon products6 Oct 2009US 7,597,744 B2Honeywell International Inc.
- Process and system for separation and recovery of perfluorocompound gases12 Aug 2003US 6,605,133 B1American Air Liquide, Inc.
- Method and apparatus for separating and recovering perfluoro compound19 Nov 2002US 6,482,251 B1Daido Air Products Electronics, Inc.
- Process for separating gases from gas mixtures using hydro fluoro ether3 Oct 2019US 2019/0299156 A1
- Method for removing moisture from fluorine-containing compounds20 Jun 2013US 2013/0158305 A1Daikin Industries, Ltd.
- Use of molecular sieves for the removal of HFC-23 from fluorocarbon products17 Jan 2008US 2008/0011159 A1Honeywell International Inc.
- Process and system for separation and recovery of perfluorocompound gases18 Oct 2001US 2001/0029841 A1American Air Liqide, Inc.
Most cited
By later US patents
- Removal of perfluorocarbons from gas streams77US 5,417,742 AThe BOC Group, Inc. · 1995
- Process and system for separation and recovery of perfluorocompound gases73US 5,858,065 AAmerican Air Liquide, Inc. · 1999
- Process and system for separation and recovery of perfluorocompound gases42US 5,785,741 AAmerican Air Liquide, Inc. · 1998
- Process and system for separation and recovery of perfluorocompound gases30US 5,919,285 AAmerican Air Liquide, Inc. · 1999
- Separation of CF4 and C2F6 from a perfluorocompound mixture13US 6,187,077 B1American Air Liquide, Inc. · 2001