G01F 3/38
Having only one measuring chamber
Official title: having only one measuring chamber
G01F3/38 (Having only one measuring chamber) appears on 63 US grants and 37 published applications in this corpus.
Search patents in G01F- Granted patents
- 63
- Published applications
- 37
- Assignees
- 53
- Inventors
- 145
- 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 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 4 |
| 2011 | 1 | 1 |
| 2012 | 3 | 0 |
| 2013 | 1 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 3 | 3 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 3 |
| 2024 | 0 | 0 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Method and a system for measuring instantaneous inflow rate of urine25 Feb 2025US 12,232,873 B2Bright Uro, Inc.
- Pulse shot-type flow rate control device, pulse shot-type flow rate control method, and program28 Nov 2023US 11,829,167 B2Ckd Corporation
- 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.
- Pulse shot-type flow rate control device, pulse shot-type flow rate control method, and program17 Aug 2023US 2023/0259146 A1Ckd Corporation
- Instruments, systems, and methods for measuring liquid flow through channels22 Jun 2023US 2023/0191405 A1Illumina, Inc.
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 disposing of liquid surgical waste for protection of healthcare workers72US 7,469,727 B2BioDrain Medical, Inc. · 2008
- Automatic urine flow meter45US 4,532,936 A1985