G01F 3/36
Measuring the volume flow of fluids or fluent solid material wherein the
Official title: with stationary measuring chambers having constant volume during measurement (with measuring chambers which expand or contract during measurement G01F3/02)
G01F3/36 (Measuring the volume flow of fluids or fluent solid material wherein the) appears on 87 US grants and 55 published applications in this corpus.
Search patents in G01F- Granted patents
- 87
- Published applications
- 55
- Assignees
- 74
- Inventors
- 193
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 5 |
| 2011 | 1 | 1 |
| 2012 | 3 | 0 |
| 2013 | 1 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 7 |
| 2020 | 3 | 4 |
| 2021 | 3 | 4 |
| 2022 | 4 | 3 |
| 2023 | 5 | 4 |
| 2024 | 1 | 1 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid flow simulation devices, fluid heating chambers, and associated methods14 Apr 2026US 12,601,616 B2Battelle Energy Alliance, LLC
- Fluid parameter measurement device with annular gap3 Mar 2026US 12,566,086 B1Suzhou University of Technology
- Systems and methods for tracking liquid consumption for a bottle assembly11 Nov 2025US 12,467,777 B2Haier US Appliance Solutions, Inc.
- Coupler for use in a closed transfer system15 Jul 2025US 12,358,777 B2Pentair Flow Technologies, LLC
- Method and a system for measuring instantaneous inflow rate of urine25 Feb 2025US 12,232,873 B2Bright Uro, Inc.
- Fluid parameter measurement device with annular gap5 Mar 2026US 2026/0063460 A1Suzhou University of Technology
- Systems and methods for tracking liquid consumption for a bottle assembly18 Sep 2025US 2025/0290783 A1Haier US Appliance Solutions, Inc.
- Method and a system for measuring instantaneous inflow rate of urine15 May 2025US 2025/0152062 A1Bright Uro, Inc.
- Coupler for Use in a Closed Transfer System18 Apr 2024US 2024/0124293 A1Pentair Flow Technologies, LLC
- Systems and methods for modeling fluid flow31 Aug 2023US 2023/0274055 A1Wayne State University
Most cited
By later US patents
- Electronic urine flow monitor198US 4,343,316 AC. R. Bard, Inc. · 1982
- Method and an apparatus for metering a liquid flow117US 4,306,454 AA/S N. Foss Electric · 1981
- Method and apparatus for measuring and controlling volumetric flow rate of gases in a line74US 4,285,245 APrecision Machine Products, Inc. · 1981
- Method and apparatus for continuous measurement of liquid flow velocity72US 5,333,497 AMetron AS · 1994
- Method and apparatus for disposing of liquid surgical waste for protection of healthcare workers72US 7,469,727 B2BioDrain Medical, Inc. · 2008