G01F 3/08
Rotary-piston or ring-piston meters
G01F3/08 (Rotary-piston or ring-piston meters) appears on 58 US grants and 28 published applications in this corpus.
Search patents in G01F- Granted patents
- 58
- Published applications
- 28
- Assignees
- 36
- Inventors
- 89
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 4 |
| 2005 | 3 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 3 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Device, system and method for dispensing lubricant29 Jul 2025US 12,372,203 B2Gb IP Holdings Pty Ltd
- Determining fluid flow across rotary pump23 Apr 2024US 11,965,763 B2Mozarc Medical US LLC
- Magnetic sensor assembly for rotary gas meters29 Mar 2022US 11,287,296 B2Romet Limited
- Magnetic sensor assembly for rotary gas meters6 Oct 2020US 10,794,740 B2Romet Limited
- Chemical-injection management system23 May 2017US 9,657,545 B2Cameron International Corporation
- Device, system and method for dispensing lubricant6 Nov 2025US 2025/0341278 A1Gb IP Holdings Pty Ltd
- A device, system and method for dispensing lubricant3 Aug 2023US 2023/0243468 A1Gb IP Holdings Pty Ltd
- Determining fluid flow across rotary pump18 May 2023US 2023/0152136 A1Medtronic, Inc.
- Rotary piston water meter30 Sep 2021US 2021/0302214 A1Honeywell International Inc.
- Magnetic sensor assembly for rotary gas meters31 Dec 2020US 2020/0408577 A1Romet Limited
Most cited
By later US patents
- Apparatus for metering fluids34US 5,542,450 AThe Lubrizol Corporation · 1996
- Flow meter diagnostic processing31US 8,639,464 B2Dresser, Inc. · 2014
- Aspetic food processing apparatus and method25US 4,637,936 AMarlen Research Corporation · 1987
- Automatic power generation type flowmeter23US 5,199,307 AKimmon Manufacturing Co., Ltd. · 1993
- Sampler for taking a defined amount of sample of a fluid medium from a sample-taking site20US 7,430,930 B2Endress+Hauser Wetzer GmbH+Co.KG · 2008