F04C 2210/00
Fluid
F04C2210/00 (Fluid) appears on 979 US grants and 1,140 published applications in this corpus.
Search patents in F04C- Granted patents
- 979
- Published applications
- 1,140
- Assignees
- 443
- Inventors
- 2,322
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 16 | 0 |
| 2001 | 15 | 2 |
| 2002 | 11 | 9 |
| 2003 | 7 | 14 |
| 2004 | 8 | 12 |
| 2005 | 7 | 18 |
| 2006 | 6 | 11 |
| 2007 | 8 | 7 |
| 2008 | 7 | 15 |
| 2009 | 4 | 22 |
| 2010 | 12 | 27 |
| 2011 | 13 | 30 |
| 2012 | 11 | 32 |
| 2013 | 27 | 32 |
| 2014 | 26 | 42 |
| 2015 | 22 | 47 |
| 2016 | 29 | 61 |
| 2017 | 37 | 112 |
| 2018 | 64 | 109 |
| 2019 | 76 | 98 |
| 2020 | 81 | 108 |
| 2021 | 87 | 100 |
| 2022 | 107 | 72 |
| 2023 | 65 | 56 |
| 2024 | 76 | 45 |
| 2025 | 51 | 39 |
| 2026 | 19 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04C 2210/26Refrigerants with particular propertiesIndexing code301
- F04C 2210/20Liquid, i.e. incompressibleIndexing code263
- F04C 2210/10WorkingIndexing code196
- F04C 2210/14LubricantIndexing code120
- F04C 2210/22Gaseous, i.e. compressibleIndexing code98
- F04C 2210/24MixedIndexing code79
- F04C 2210/40PropertiesIndexing code30
- F04C 2210/60ConditionIndexing code21
All 9 subgroupsShow fewer
Recent patents
- Electrical sprayer22 Sep 2026US 12,742,452 B2Mmlj, Inc
- Use of a composition as refrigerant in compressor, compressor, and refrigeration cycle apparatus28 Jul 2026US 12,692,425 B2Daikin Industries, Ltd.
- Lubricant management in an HVACR system28 Jul 2026US 12,693,052 B2Trane International Inc.
- Automotive electric oil pump21 Jul 2026US 12,687,166 B2Pierburg Pump Technology GmbH
- Pump for additive manufacturing16 Jun 2026US 12,654,396 B2Sciperio, Inc
- Multiphase pump of the screw spindle pump type1 Oct 2026US 2026/0298229 A1Leistritz Pumpen GmbH
- Gas Compressor20 Aug 2026US 2026/0243258 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Modular trochoidal medicament pump device and driving device13 Aug 2026US 2026/0232894 A1
- Impeller of a pump, and pump6 Aug 2026US 2026/0226910 A1Rheinisch-Westfalische Technische Hochschule Aachen, Abgektirzt RWTH Aachen Korperschaft des dffe
- Gear pump parallel load path30 Jul 2026US 2026/0218702 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Rotary compressor with reduced lubrication sensitivity147US 5,947,710 ACarrier Corporation · 1999
- Compressible lubricant with memory combined with anaerobic pipe sealant104US 5,431,831 A1995
- Method for forming panel door with simulated wood grains85US 5,075,059 APease Industries, Inc. · 1991
- Refrigeration lubricating oil compositions75US 4,267,064 AMatsushita Electric Industrial Co., Ltd. · 1981
- Method and apparatus for accurately dispensing liquids and solids72US 5,857,589 AFluid Research Corporation · 1999