F15D 1/0015
Whirl chambers
Official title: {Whirl chambers, e.g. vortex valves}
F15D1/0015 (Whirl chambers) appears on 140 US grants and 139 published applications in this corpus.
Search patents in F15D- Granted patents
- 140
- Published applications
- 139
- Assignees
- 82
- Inventors
- 259
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 6 |
| 2009 | 0 | 3 |
| 2010 | 2 | 3 |
| 2011 | 5 | 7 |
| 2012 | 1 | 17 |
| 2013 | 14 | 5 |
| 2014 | 4 | 8 |
| 2015 | 6 | 14 |
| 2016 | 5 | 5 |
| 2017 | 6 | 4 |
| 2018 | 6 | 11 |
| 2019 | 10 | 11 |
| 2020 | 7 | 10 |
| 2021 | 8 | 2 |
| 2022 | 9 | 8 |
| 2023 | 7 | 8 |
| 2024 | 6 | 4 |
| 2025 | 8 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ultrasonic and electrosurgical devices18 Aug 2026US 12,712,326 B2Cilag GbmH International
- Swirl valves5 May 2026US 12,618,374 B2Collins Engine Nozzles, Inc.
- Vortex chamber10 Feb 2026US 12,546,343 B2Universiteit Antwerpen
- Material flow amplifier16 Dec 2025US 12,497,981 B2Vortex Pipe Systems LLC
- Fluid flow conduit with controlled hydrodynamics18 Nov 2025US 12,473,937 B2The University of British Columbia
- Swirling flow generating device that can change the rotation direction periodically2 Jul 2026US 2026/0185550 A1Roketsan Roket Sanayii Ticaret A. S.
- Ultrasonic and electrosurgical devices14 May 2026US 2026/0135341 A1Cilag GmbH International
- Flow ducts, flow assemblies, and methods comprising flow ducts5 Feb 2026US 2026/0036149 A1Bulk Accelerator
- Method for braking a low-overpressure gas flow1 Jan 2026US 2026/0002458 A1
- Flow equalizing device and diverting device1 Jan 2026US 2026/0002555 A1Johnson Controls Tyco Holdings LLP
Most cited
By later US patents
- Diffuser with convoluted vortex generator50US 4,971,768 AUnited Technologies Corporation · 1990
- Ultrasonic and electrosurgical devices46US 11,324,527 B2Cilag GmbH International · 2022
- Combustion chamber with two-stage combustion45US 5,829,967 AAsea Brown Boveri AG · 1998
- Method of generating spiral fluid flow and the device therefor39US 4,721,126 A1988
- Device for controlling fluid flow39US 5,052,442 A1991