F04C 2240/806
Pipes for fluids
Official title: Pipes for fluids; Fittings therefor
F04C2240/806 (Pipes for fluids) appears on 159 US grants and 185 published applications in this corpus.
Search patents in F04C- Granted patents
- 159
- Published applications
- 185
- Assignees
- 88
- Inventors
- 424
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 7 |
| 2005 | 2 | 4 |
| 2006 | 4 | 4 |
| 2007 | 2 | 2 |
| 2008 | 3 | 6 |
| 2009 | 4 | 11 |
| 2010 | 5 | 5 |
| 2011 | 3 | 8 |
| 2012 | 3 | 4 |
| 2013 | 5 | 5 |
| 2014 | 7 | 8 |
| 2015 | 5 | 7 |
| 2016 | 5 | 7 |
| 2017 | 5 | 10 |
| 2018 | 5 | 13 |
| 2019 | 5 | 7 |
| 2020 | 15 | 13 |
| 2021 | 14 | 17 |
| 2022 | 12 | 13 |
| 2023 | 18 | 13 |
| 2024 | 14 | 10 |
| 2025 | 9 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor and refrigeration apparatus1 Sep 2026US 12,723,789 B2Guangdong Meizhi Precision-Manufacturing Co., Ltd.
- Compressor including refrigerant introduction tube10 Feb 2026US 12,546,317 B2Daikin Industries, Ltd.
- Horizontal compressor16 Dec 2025US 12,497,967 B2Samsung Electronics Co., Ltd.
- Scroll compressor with intermediate injection18 Nov 2025US 12,474,083 B2Trane International Inc.
- Metering distribution assembly and coating system comprising the same21 Oct 2025US 12,448,964 B2Nordson Corporation
- Multiphase pump of the screw spindle pump type1 Oct 2026US 2026/0298229 A1Leistritz Pumpen GmbH
- Connector for a vacuum pumping system30 Jul 2026US 2026/0218695 A1Edwards Limited
- Hermetic compressor and refrigeration cycle apparatus16 Jul 2026US 2026/0201886 A1Mitsubishi Electric Corporation
- Connection assembly and compressor30 Apr 2026US 2026/0117759 A1
- Hydraulic module and assembly having such a hydraulic module28 Aug 2025US 2025/0274015 A1Valeo Embrayages
Most cited
By later US patents
- Suction connector for pump26US 5,593,279 AKayaba Industry Co., Ltd. · 1997
- Assembling mechanism of discharge pipe for hermetic compressor and method thereof20US 7,147,444 B2LG Electronics Inc. · 2006
- Sealed type compressor19US 6,164,934 AMatsushita Electric Industrial Co., Ltd. · 2000
- Closed type compressor18US 4,648,811 AKabushiki Kaisha Toshiba · 1987
- Compressor, and method of manufacturing same including a press-fit inlet tube17US 5,261,800 ADaikin Industries, Ltd. · 1993