F16L 55/02772
Using spirally or helically shaped channels
Official title: {using spirally or helically shaped channels}
F16L55/02772 (Using spirally or helically shaped channels) appears on 57 US grants and 66 published applications in this corpus.
Search patents in F16L- Granted patents
- 57
- Published applications
- 66
- Assignees
- 45
- Inventors
- 102
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 0 | 3 |
| 2018 | 3 | 4 |
| 2019 | 4 | 5 |
| 2020 | 7 | 8 |
| 2021 | 5 | 5 |
| 2022 | 5 | 6 |
| 2023 | 6 | 5 |
| 2024 | 6 | 3 |
| 2025 | 4 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid flow control devices and systems, and methods of flowing fluids1 Sep 2026US 12,723,676 B2Flowserve Pte. Ltd.
- Apparatuses, systems, and methods for efficient fluid transfer18 Aug 2026US 12,710,064 B2Amptech Innovations LLC
- Micro-flow throttling device27 Jan 2026US 12,535,152 B2Shanghai Institute of Space Propulsion
- Material flow amplifier16 Dec 2025US 12,497,981 B2Vortex Pipe Systems LLC
- Material flow modifier and apparatus comprising same15 Jul 2025US 12,359,684 B2Vortex Pipe Systems LLC
- Silencer and lithographic apparatus thermal conditioning system27 Aug 2026US 2026/0251255 A1ASML Netherlands B. V.
- Flow equalizing device and diverting device1 Jan 2026US 2026/0002555 A1Johnson Controls Tyco Holdings LLP
- Micro-flow throttling device27 Feb 2025US 2025/0067356 A1Shanghai Institute of Space Propulsion
- Aircraft turbomachine comprising a device for inhibiting the accumulation of coke in a duct20 Feb 2025US 2025/0059918 A1Safran Helicopter Engines
- Apparatuses, systems, and methods for efficient fluid transfer12 Sep 2024US 2024/0301900 A1Amptech Innovations LLC
Most cited
By later US patents
- Noise suppressor apparatus for a gas duct43US 7,117,973 B2Mann+Hummel GmbH · 2006
- Fluid pressure control28US 4,106,525 AThe Secretary of State for Industry in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1978
- Liquid pulsation dampening device19US 4,679,597 AKim Hotstart Mfg. Co., Inc. · 1987
- Material flow amplifier17US 10,458,446 B1Vortex Pipe Systems LLC · 2019
- Helix amplifier fittings13US 10,302,104 B2Somarakis Helix Elbow Piping LLC · 2019