G01F 1/708
Measuring the time taken to traverse a fixed distance
G01F1/708 (Measuring the time taken to traverse a fixed distance) appears on 848 US grants and 738 published applications in this corpus.
Search patents in G01F- Granted patents
- 848
- Published applications
- 738
- Assignees
- 521
- Inventors
- 1,627
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 7 | 0 |
| 1988 | 14 | 0 |
| 1989 | 15 | 0 |
| 1990 | 13 | 0 |
| 1991 | 8 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 12 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 14 | 0 |
| 2001 | 11 | 1 |
| 2002 | 17 | 14 |
| 2003 | 16 | 11 |
| 2004 | 10 | 22 |
| 2005 | 13 | 35 |
| 2006 | 18 | 21 |
| 2007 | 29 | 35 |
| 2008 | 35 | 39 |
| 2009 | 21 | 34 |
| 2010 | 26 | 51 |
| 2011 | 32 | 27 |
| 2012 | 20 | 23 |
| 2013 | 25 | 29 |
| 2014 | 22 | 28 |
| 2015 | 24 | 37 |
| 2016 | 23 | 33 |
| 2017 | 31 | 33 |
| 2018 | 31 | 40 |
| 2019 | 44 | 30 |
| 2020 | 42 | 40 |
| 2021 | 23 | 33 |
| 2022 | 29 | 39 |
| 2023 | 31 | 30 |
| 2024 | 25 | 30 |
| 2025 | 23 | 20 |
| 2026 | 22 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01F 1/712Using auto-correlation or cross-correlation detection means286
- G01F 1/7086Using optical detecting arrangements213
- G01F 1/7082Using acoustic detecting arrangements166
- G01F 1/7084Using thermal detecting arrangements112
- G01F 1/716Using electron paramagnetic resonance [epr] or nuclear magnetic resonance [nmr]97
- G01F 1/7088Using electrically charged particles as tracers73
Recent patents
- Optical measurement of flow parameters22 Sep 2026US 12,742,669 B2Flowlit Ltd.
- Fluid measurement system and fluid measurement method8 Sep 2026US 12,730,122 B2Fuji Electric Co., Ltd.
- Method for determining pipeline volume, liquid chromatography system, and pipeline volume determination device1 Sep 2026US 12,724,012 B2Thermo Fisher Scientific (Shanghai) Instruments Co., Ltd.
- Apparatus for monitoring of the multiphase flow in a pipe18 Aug 2026US 12,710,298 B2Enercorp Engineered Solutions Inc.
- Wet gas holdup gas fraction and flow meter11 Aug 2026US 12,704,396 B2Saudi Arabian Oil Company
- Optical probe for measuring wall-shear stress18 Jun 2026US 2026/0169022 A1The George Washington University
- Capacitive electrical conductivity sensor integrated in a water meter23 Apr 2026US 2026/0110562 A1Itron, Inc.
- Apparatus and method for measuring fluid flow5 Mar 2026US 2026/0063457 A12Sg Technologies LLC
- Led intensity decay particle tracking velocimetry11 Dec 2025US 2025/0377282 A1United States of America as represented by the Administrator of NASA
- Device for monitoring foam volume, flow pattern, and pressure drop in foam drainage gas recovery27 Nov 2025US 2025/0362162 A1Southwest Petroleum University
Most cited
By later US patents
- Integrated fluid manipulation cartridge543US 6,440,725 B1Cepheid · 2002
- Liquid flow rate estimation and verification by direct liquid measurement507US 5,866,795 AAPPLIED Materials.Inc. · 1999
- Method for separating analyte from a sample353US 6,893,879 B2Cepheid · 2005
- Method and apparatus for measuring multiphase flows198US 5,591,922 ASchlumberger Technology Corporation · 1997
- Method and apparatus for determining a rate of flow of blood for an extracorporeal blood therapy instrument191US 4,995,268 AAsh Medical System, Incorporated · 1991