G01F 1/002
Wherein the flow is in an open channel
Official title: wherein the flow is in an open channel
G01F1/002 (Wherein the flow is in an open channel) appears on 331 US grants and 209 published applications in this corpus.
Search patents in G01F- Granted patents
- 331
- Published applications
- 209
- Assignees
- 205
- Inventors
- 607
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 15 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 13 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 5 |
| 2003 | 6 | 5 |
| 2004 | 6 | 2 |
| 2005 | 4 | 4 |
| 2006 | 4 | 6 |
| 2007 | 4 | 3 |
| 2008 | 3 | 2 |
| 2009 | 4 | 1 |
| 2010 | 3 | 7 |
| 2011 | 2 | 5 |
| 2012 | 5 | 7 |
| 2013 | 5 | 6 |
| 2014 | 6 | 10 |
| 2015 | 4 | 14 |
| 2016 | 7 | 6 |
| 2017 | 15 | 16 |
| 2018 | 11 | 17 |
| 2019 | 12 | 15 |
| 2020 | 14 | 8 |
| 2021 | 14 | 13 |
| 2022 | 13 | 16 |
| 2023 | 10 | 14 |
| 2024 | 8 | 16 |
| 2025 | 8 | 6 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Floating platforms for sampling fish survey in tidal channels at high and low tides and quantitative assessment method21 Jul 2026US 12,688,537 B2
- Automatic distance measurement in a flow channel24 Mar 2026US 12,584,778 B2Testo SE & Co. KGaA
- Capacitive parameter measurement in a self-propelled forage harvester17 Mar 2026US 12,575,494 B2CLAAS Selbstfahrende Erntemaschinen GmbH
- Flow meter for a sewage conduit including a plurality of opposing fluid induction portions with embedded ultrasonic transducers and an externally mounted ultrasonic transducer in combination for measuring water depth within the flow meter20 Jan 2026US 12,529,584 B2Jain Technology Do., Ltd.
- Measurement of system for streamflow determination in real time20 Jan 2026US 12,529,586 B2University of Iowa Research Foundation
- Free surface flow measurement assembly24 Sep 2026US 2026/0287404 A1Flo Sciences, LLC
- Pit sensor19 Mar 2026US 2026/0079038 A1Xorro Pty Ltd
- Floating platforms for sampling fish survey in tidal channels at high and low tides and quantitative assessment method12 Feb 2026US 2026/0044905 A1East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences
- Devices, systems and methods for detecting leaks and measuring usage1 Jan 2026US 2026/0002644 A1IOT Technologies LLC
- Method for operating a magnetic-inductive flowmeter and magnetic-inductive flowmeter1 Jan 2026US 2026/0002804 A1Krohne AG
Most cited
By later US patents
- Ultrasonic flowmeters using waveguide antennas271US 4,336,719 APanametrics, Inc. · 1982
- Method and system for analyzing a two phase flow86US 5,600,073 AFoster-Miller, Inc. · 1997
- Method and apparatus for characterizing flows based on attenuation of in-wall propagating wave modes85US 6,575,043 B1Schlumberger Technology Corporation · 2003
- Multi-function flow monitoring apparatus with area velocity sensor capability84US 5,633,809 AAmerican Sigma, Inc. · 1997
- Method and system for analyzing a two phase flow81US 5,714,691 AFoster-Miller, Inc. · 1998