G01F 1/7046
Using electrical loaded particles as tracer
Official title: {using electrical loaded particles as tracer, e.g. ions or electrons}
G01F1/7046 (Using electrical loaded particles as tracer) appears on 42 US grants and 29 published applications in this corpus.
Search patents in G01F- Granted patents
- 42
- Published applications
- 29
- Assignees
- 31
- Inventors
- 86
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 2 | 2 |
| 2010 | 2 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 3 | 1 |
| 2020 | 3 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid conductivity sensor based on magneto-inductive power transfer dissipation10 Feb 2026US 12,546,637 B2Saudi Arabian Oil Company
- Electrochemical apparatus for monitoring flow rate18 Nov 2025US 12,474,189 B2Caremedi Co., Ltd.
- Device and method for measuring the flow of a fluid in a tube moved by a peristaltic pump14 Jan 2025US 12,196,193 B2STMicroelectronics S,r.l.
- Device and method for measuring the flow of a fluid in a tube moved by a peristaltic pump2 Apr 2024US 11,946,467 B2STMicroelectronics S,r.l.
- Estimates of flow velocity with controlled spatio-temporal variations in contrast media properties7 Feb 2023US 11,573,108 B2ExxonMobil Technology and Engineering Company
- Microfluidic electrochemical device for measuring a volume flow rate20 Nov 2025US 2025/0354844 A1Noptrack
- Fluid conductivity sensor based on magneto-inductive power transfer dissipation27 Mar 2025US 2025/0102338 A1Aramco Services Company
- Device and method for measuring the flow of a fluid in a tube moved by a peristaltic pump13 Jun 2024US 2024/0191708 A1STMicroelectronics S,r.l.
- Electrochemical apparatus for monitoring flow rate25 May 2023US 2023/0158233 A1Caremedi Co., Ltd.
- Device and method for measuring the flow of a fluid in a tube moved by a peristaltic pump12 May 2022US 2022/0145873 A1STMicroelectronics S,r.l.
Most cited
By later US patents
- Altered fluid conductivity monitor85US 5,570,026 ACobe Laboratories, Inc. · 1996
- Differential conductivity hemodynamic monitor63US 5,644,240 ACobe Laboratories, Inc. · 1997
- Differential conductivity recirculation monitor52US 5,510,716 ACobe Laboratories, Inc. · 1996
- Flow rate meter incorporating reusable device51US 8,347,731 B22013
- Access flow monitoring using reversal of normal blood flow50US 6,189,388 B1Gambro AB · 2001