G01F 1/32
Using swirl flowmeters
Official title: using swirl flowmeters
G01F1/32 (Using swirl flowmeters) appears on 750 US grants and 359 published applications in this corpus.
Search patents in G01F- Granted patents
- 750
- Published applications
- 359
- Assignees
- 276
- Inventors
- 978
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 19 | 0 |
| 1978 | 15 | 0 |
| 1979 | 11 | 0 |
| 1980 | 15 | 0 |
| 1981 | 20 | 0 |
| 1982 | 15 | 0 |
| 1983 | 16 | 0 |
| 1984 | 33 | 0 |
| 1985 | 12 | 0 |
| 1986 | 16 | 0 |
| 1987 | 13 | 0 |
| 1988 | 13 | 0 |
| 1989 | 30 | 0 |
| 1990 | 29 | 0 |
| 1991 | 19 | 0 |
| 1992 | 15 | 0 |
| 1993 | 10 | 0 |
| 1994 | 17 | 0 |
| 1995 | 13 | 0 |
| 1996 | 13 | 0 |
| 1997 | 7 | 0 |
| 1998 | 14 | 0 |
| 1999 | 16 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 1 |
| 2002 | 9 | 5 |
| 2003 | 9 | 6 |
| 2004 | 3 | 11 |
| 2005 | 11 | 10 |
| 2006 | 9 | 6 |
| 2007 | 7 | 7 |
| 2008 | 8 | 16 |
| 2009 | 8 | 13 |
| 2010 | 14 | 15 |
| 2011 | 15 | 20 |
| 2012 | 10 | 13 |
| 2013 | 19 | 16 |
| 2014 | 15 | 15 |
| 2015 | 22 | 25 |
| 2016 | 21 | 23 |
| 2017 | 15 | 17 |
| 2018 | 9 | 23 |
| 2019 | 19 | 13 |
| 2020 | 23 | 33 |
| 2021 | 16 | 16 |
| 2022 | 21 | 14 |
| 2023 | 14 | 7 |
| 2024 | 18 | 17 |
| 2025 | 10 | 10 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flow rate detection for an aspirating smoke detection system29 Sep 2026US 12,747,971 B2Honeywell International Inc.
- Flowmeter30 Jun 2026US 12,669,355 B2SIKA Dr. Siebert & Kühn GmbH & Co. KG
- Heat exchanger with enhanced heat transfer manifold9 Jun 2026US 12,650,274 B2Rtx Corporation
- Flow measurement device17 Mar 2026US 12,578,214 B2Kofloc Corp.
- Sensor for detecting pressure fluctuations in a flowing fluid, and measurement system formed therewith16 Dec 2025US 12,498,259 B2Endress + Hauser Flowtec AG
- Heat exchanger with enhanced heat transfer manifold1 Oct 2026US 2026/0298561 A1Rtx Corporation
- Vortex meter with hydrogen getter module1 Oct 2026US 2026/0298685 A1
- Apparatus, method, and non-transitory computer readable medium17 Sep 2026US 2026/0276421 A1Yokogawa Electric Corporation
- Full-surface detached vorticity method for solving fluid dynamics6 Aug 2026US 2026/0228400 A1
- Virtual flow rate computing apparatus, virtual flow rate computing method, and virtual flow rate computing program30 Jul 2026US 2026/0220327 A1Yokogawa Electric Corporation
Most cited
By later US patents
- Method for recording multi-phase flows through a transport system120US 5,083,452 ASensorteknikk A/S · 1992
- Gas-powered nebulizer97US 4,620,670 AVortran Corporation · 1986
- Method and apparatus for real time gas analysis82US 6,250,132 B1metaSENSORS, Inc. · 2001
- Apparatus for measuring the velocity of a fluid flowing in a conduit80US 5,908,990 AAura Enviromental, Ltd. · 1999
- Method and apparatus for real time gas analysis75US 6,076,392 AmetaSENSORS, Inc. · 2000