F17C 2227/04
Methods for emptying or filling
F17C2227/04 (Methods for emptying or filling) appears on 916 US grants and 854 published applications in this corpus.
Search patents in F17C- Granted patents
- 916
- Published applications
- 854
- Assignees
- 525
- Inventors
- 1,867
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 12 | 0 |
| 1990 | 4 | 0 |
| 1991 | 16 | 0 |
| 1992 | 12 | 0 |
| 1993 | 11 | 0 |
| 1994 | 16 | 0 |
| 1995 | 17 | 0 |
| 1996 | 18 | 0 |
| 1997 | 22 | 0 |
| 1998 | 24 | 0 |
| 1999 | 24 | 0 |
| 2000 | 24 | 0 |
| 2001 | 24 | 10 |
| 2002 | 24 | 22 |
| 2003 | 29 | 24 |
| 2004 | 27 | 20 |
| 2005 | 18 | 29 |
| 2006 | 18 | 34 |
| 2007 | 19 | 32 |
| 2008 | 15 | 19 |
| 2009 | 16 | 25 |
| 2010 | 17 | 25 |
| 2011 | 7 | 14 |
| 2012 | 13 | 24 |
| 2013 | 17 | 20 |
| 2014 | 17 | 38 |
| 2015 | 18 | 45 |
| 2016 | 33 | 45 |
| 2017 | 36 | 38 |
| 2018 | 26 | 45 |
| 2019 | 33 | 31 |
| 2020 | 49 | 45 |
| 2021 | 33 | 51 |
| 2022 | 42 | 45 |
| 2023 | 37 | 52 |
| 2024 | 49 | 43 |
| 2025 | 27 | 46 |
| 2026 | 21 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F17C 2227/044By purgingIndexing code254
- F17C 2227/043By pressure cascadeIndexing code162
- F17C 2227/048By maintaining residual pressureIndexing code116
- F17C 2227/041Vessel by vesselIndexing code111
- F17C 2227/045By vacuumIndexing code72
- F17C 2227/046By even emptying or fillingIndexing code54
- F17C 2227/047By repeating a process cycleIndexing code46
Recent patents
- Nitrox-mixtures production machine1 Sep 2026US 12,723,714 B2Nardi Compressori S.R.L.
- System and method for making a building carbon neutral1 Sep 2026US 12,723,783 B2Carrier Corporation
- Method and conveying device25 Aug 2026US 12,716,549 B2Linde Aktiengesellschaft
- Fluid filling systems and methods18 Aug 2026US 12,709,533 B2Fountain Master, LLC
- Systems and methods for improved asset monitoring via orientation measurement21 Jul 2026US 12,689,847 B2Silicon Controls Pty Ltd.
- Systems and Methods for Improved Asset Monitoring via Orientation Measurement8 Oct 2026US 2026/0313274 A1Silicon Controls Pty Ltd.
- Method for Removing Hydrogen, for Completely Emptying a Liquid-Hydrogen Tank, and Use of Same17 Sep 2026US 2026/0276150 A1Daimler Truck AG
- Tank system and method for monitoring a tightness of a tank system6 Aug 2026US 2026/0227034 A1Robert Bosch GmbH
- Hydrogen gas transport device and purging method for compressor30 Jul 2026US 2026/0218857 A1Kawasaki Jukogyo Kabushiki Kaisha
- Hydrogen motorization device and method9 Jul 2026US 2026/0194188 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Self-contained mobile fueling station157US 6,786,245 B1Air Products and Chemicals, Inc. · 2004
- System for replenishing energy sources onboard different types of automotive vehicles139US 7,602,143 B22009
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator136US 5,979,440 ASeQual Technologies, Inc. · 1999
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator133US 6,698,423 B1SeQual Technologies, Inc. · 2004
- Variable-volume storage and dispensing apparatus for compressed natural gas129US 5,454,408 AThermo Power Corporation · 1995