F15C 1/18
Turbulence devices, i.e. devices in which a controlling stream will cause a
Official title: Turbulence devices, i.e. devices in which a controlling stream will cause a laminar flow to become turbulent {; Diffusion amplifiers}
F15C1/18 (Turbulence devices, i.e. devices in which a controlling stream will cause a) appears on 19 US grants and 13 published applications in this corpus.
Search patents in F15C- Granted patents
- 19
- Published applications
- 13
- Assignees
- 8
- Inventors
- 14
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 6 |
| 2021 | 2 | 1 |
| 2022 | 4 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Material flow amplifier16 Dec 2025US 12,497,981 B2Vortex Pipe Systems LLC
- Cyclonic flow-inducing pump2 Sep 2025US 12,404,884 B2Vortex Pipe Systems LLC
- Cyclonic flow-inducing pump18 Jun 2024US 12,012,980 B2Vortex Pipe Systems LLC
- Material flow amplifier11 Jun 2024US 12,006,957 B2Vortex Pipe Systems LLC
- Device and method for creating a distribution of unsteady suction6 Sep 2022US 11,434,945 B2Ramot at Tel Aviv Universitv Ltd.
- Material flow amplifier29 Aug 2024US 2024/0288012 A1Vortex Pipe Systems LLC
- Cyclonic flow-inducing pump29 Aug 2024US 2024/0288013 A1Vortex Pipe Systems LLC
- Material flow amplifier22 Sep 2022US 2022/0299049 A1Vortex Pipe Systems LLC
- Cyclonic flow-inducing pump24 Mar 2022US 2022/0090613 A1Vortex Pipe Systems LLC
- Rotary in-line pump23 Dec 2021US 2021/0396252 A1Vortex Pipe Systems LLC
Most cited
By later US patents
- Jet type liquid level sensor and system25US 4,161,188 AParker-Hannifin Corporation · 1979
- Automatic valving system21US 4,024,887 AVought Corporation · 1977
- Material flow amplifier17US 10,458,446 B1Vortex Pipe Systems LLC · 2019
- Device for simultaneous modulation and amplification of low frequency sounds11US 3,999,625 AL. P. S. Incorporated · 1976
- Material flow amplifier8US 10,683,881 B1Vortex Pipe Systems LLC · 2020