G01F 1/80
Operating by measuring pressure, force, momentum, or frequency of a fluid flow
Official title: operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
G01F1/80 (Operating by measuring pressure, force, momentum, or frequency of a fluid flow) appears on 1,523 US grants and 1,308 published applications in this corpus.
Search patents in G01F- Granted patents
- 1,523
- Published applications
- 1,308
- Assignees
- 316
- Inventors
- 1,340
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 23 | 0 |
| 1989 | 32 | 0 |
| 1990 | 15 | 0 |
| 1991 | 26 | 0 |
| 1992 | 10 | 0 |
| 1993 | 14 | 0 |
| 1994 | 34 | 0 |
| 1995 | 22 | 0 |
| 1996 | 19 | 0 |
| 1997 | 20 | 0 |
| 1998 | 31 | 0 |
| 1999 | 23 | 0 |
| 2000 | 16 | 0 |
| 2001 | 34 | 10 |
| 2002 | 35 | 25 |
| 2003 | 42 | 35 |
| 2004 | 42 | 30 |
| 2005 | 24 | 44 |
| 2006 | 45 | 58 |
| 2007 | 42 | 65 |
| 2008 | 42 | 75 |
| 2009 | 44 | 37 |
| 2010 | 58 | 59 |
| 2011 | 39 | 78 |
| 2012 | 55 | 56 |
| 2013 | 49 | 41 |
| 2014 | 69 | 53 |
| 2015 | 42 | 49 |
| 2016 | 45 | 42 |
| 2017 | 36 | 52 |
| 2018 | 41 | 45 |
| 2019 | 46 | 53 |
| 2020 | 77 | 64 |
| 2021 | 34 | 65 |
| 2022 | 48 | 78 |
| 2023 | 56 | 60 |
| 2024 | 59 | 46 |
| 2025 | 48 | 45 |
| 2026 | 40 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coriolis mass flowmeter with no risk of metal ion elution29 Sep 2026US 12,747,975 B2AlphiTechnology Co., LTD.
- Interface with improved accessibility29 Sep 2026US 12,747,976 B2Micro Motion, Inc.
- Coriolis mass flowmeter using built-in supporting structure22 Sep 2026US 12,742,670 B2Walsn Limited
- Coriolis mass flow meter1 Sep 2026US 12,723,905 B2Endress + Hauser Flowtec AG
- Measuring system having a measuring transducer of vibration-type25 Aug 2026US 12,716,758 B2Endress + Hauser Flowtec AG
- Interface with improved accessibility8 Oct 2026US 2026/0309530 A1Micro Motion, Inc.
- Interface with improved accessibility8 Oct 2026US 2026/0309531 A1Micro Motion, Inc.
- Vibronic measuring system for a fluid medium conveyed in a pipe8 Oct 2026US 2026/0309605 A1Endress + Hauser Flowtec AG
- Interface with improved accessibility1 Oct 2026US 2026/0298686 A1Micro Motion, Inc.
- Coriolis mass flow and density meter24 Sep 2026US 2026/0287486 A1Endress + Hauser Flowtec AG
Most cited
By later US patents
- Method and apparatus for adaptive line enhancement in Coriolis mass flow meter measurement241US 5,555,190 AMicro Motion, Inc. · 1996
- Micromachined fluidic apparatus219US 6,477,901 B1Integrated Sensing Systems, Inc. · 2002
- Self-validating sensors198US 5,570,300 AThe Foxboro Company · 1996
- Magnetically suspended type pump196US 5,725,357 ANtn Corporation · 1998
- Coriolis mass flow rate meter having a substantially increased noise immunity191US 4,934,196 AMicro Motion, Inc. · 1990