F17C 2221/01
Pure fluids
F17C2221/01 (Pure fluids) appears on 3,585 US grants and 4,166 published applications in this corpus.
Search patents in F17C- Granted patents
- 3,585
- Published applications
- 4,166
- Assignees
- 1,638
- Inventors
- 7,469
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 12 | 0 |
| 1978 | 17 | 0 |
| 1979 | 13 | 0 |
| 1980 | 20 | 0 |
| 1981 | 27 | 0 |
| 1982 | 19 | 0 |
| 1983 | 19 | 0 |
| 1984 | 25 | 0 |
| 1985 | 26 | 0 |
| 1986 | 34 | 0 |
| 1987 | 35 | 0 |
| 1988 | 32 | 0 |
| 1989 | 48 | 0 |
| 1990 | 39 | 0 |
| 1991 | 28 | 0 |
| 1992 | 46 | 0 |
| 1993 | 29 | 0 |
| 1994 | 36 | 0 |
| 1995 | 41 | 0 |
| 1996 | 44 | 0 |
| 1997 | 41 | 0 |
| 1998 | 44 | 0 |
| 1999 | 54 | 0 |
| 2000 | 52 | 0 |
| 2001 | 61 | 16 |
| 2002 | 82 | 63 |
| 2003 | 73 | 56 |
| 2004 | 59 | 76 |
| 2005 | 39 | 75 |
| 2006 | 48 | 77 |
| 2007 | 42 | 101 |
| 2008 | 43 | 108 |
| 2009 | 49 | 118 |
| 2010 | 59 | 117 |
| 2011 | 56 | 88 |
| 2012 | 71 | 107 |
| 2013 | 73 | 83 |
| 2014 | 77 | 126 |
| 2015 | 82 | 164 |
| 2016 | 104 | 142 |
| 2017 | 99 | 139 |
| 2018 | 90 | 207 |
| 2019 | 138 | 187 |
| 2020 | 153 | 205 |
| 2021 | 167 | 226 |
| 2022 | 197 | 283 |
| 2023 | 177 | 363 |
| 2024 | 262 | 431 |
| 2025 | 268 | 361 |
| 2026 | 223 | 247 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filling nozzle support structure6 Oct 2026US 12,753,866 B2Tatsuno Corporation
- Compressed-gas storage container and vehicle6 Oct 2026US 12,753,879 B2Rheinmetall Invent GmbH
- Compressed hydrogen and air power system6 Oct 2026US 12,753,880 B2Cleantech Geomechanics Inc.
- Tank, in particular for a liquid hydrogen reservoir, provided with at least one dome fixed by way of an outer welded joint6 Oct 2026US 12,753,882 B2Airbus Operations GmbH
- Offload system6 Oct 2026US 12,753,883 B2Echeneidae Inc.
- Hydrogen generation apparatus8 Oct 2026US 2026/0307037 A1
- Cryogenic tank and method for manufacturing same8 Oct 2026US 2026/0309272 A1Cryolor
- Single-layer or multilayer structure for transporting, storing or distributing compressed gas8 Oct 2026US 2026/0309274 A1Arkema France
- Hydrogen fuel storage and distribution systems for aircraft8 Oct 2026US 2026/0309276 A1Airbus Operations GmbH
- A hydrogen refueling system8 Oct 2026US 2026/0309277 A1Cavendish Hydrogen A/S
Most cited
By later US patents
- Method and apparatus for aligning and supporting semiconductor process gas delivery and regulation components581US 5,732,744 AControl Systems, Inc. · 1998
- Container system for pressurized fluids178US 6,047,860 ASanders Technology, Inc. · 2000
- Container system for pressurized fluids167US 6,116,464 ASanders Technology, Inc. · 2000
- Self-contained mobile fueling station157US 6,786,245 B1Air Products and Chemicals, Inc. · 2004
- Drug particle delivery145US 6,475,181 B1Powderject Research Limited · 2002