G01F 1/38
The pressure or differential pressure being measured by means of a movable
Official title: the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
G01F1/38 (The pressure or differential pressure being measured by means of a movable) appears on 224 US grants and 165 published applications in this corpus.
Search patents in G01F- Granted patents
- 224
- Published applications
- 165
- Assignees
- 175
- Inventors
- 475
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 1 |
| 2002 | 3 | 3 |
| 2003 | 7 | 5 |
| 2004 | 2 | 4 |
| 2005 | 6 | 4 |
| 2006 | 2 | 3 |
| 2007 | 4 | 5 |
| 2008 | 4 | 2 |
| 2009 | 3 | 6 |
| 2010 | 7 | 7 |
| 2011 | 6 | 2 |
| 2012 | 4 | 9 |
| 2013 | 6 | 10 |
| 2014 | 5 | 5 |
| 2015 | 6 | 9 |
| 2016 | 7 | 4 |
| 2017 | 2 | 9 |
| 2018 | 11 | 12 |
| 2019 | 11 | 9 |
| 2020 | 8 | 5 |
| 2021 | 3 | 14 |
| 2022 | 9 | 11 |
| 2023 | 8 | 5 |
| 2024 | 6 | 6 |
| 2025 | 7 | 9 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus with optical feature changing visual state6 Oct 2026US 12,754,049 B2Medici Therapeuticals, Inc.
- Flow meter for dosing pumps14 Jul 2026US 12,680,541 B2Advantage Controls, LLC
- Gas assisted plunger lift control system and method28 Apr 2026US 12,612,847 B2Flowco MasterCo LLC
- Valve element, method for operating the valve element, and process valve21 Apr 2026US 12,607,268 B2GEMÜ Gebr. Müller Apparatebau GmbH & Co. Kommanditgesellschaft
- Vortex flowmeter providing extended flow rate measurement9 Dec 2025US 12,492,925 B2Schneider Electric Systems USA, Inc.
- Measurement apparatus10 Sep 2026US 2026/0266638 A1Yokogawa Electric Corporation
- Differential pressure assembly with protective boot and arrangement for amplifying pointer3 Sep 2026US 2026/0259095 A1Watts Regulator Co.
- Devices for characterizing the response of pressure measurement systems9 Jul 2026US 2026/0194405 A1
- Aspiration catheter with automatic sensing16 Apr 2026US 2026/0102181 A1Boston Scientific Scimed, Inc.
- Flow meter for dosing pumps16 Apr 2026US 2026/0104044 A1Advantage Controls, LLC
Most cited
By later US patents
- Gas flow rate verification unit475US 7,716,993 B2Ckd Corporation · 2010
- Multiple-function fluid measuring and transmitting apparatus137US 5,469,749 AHitachi, Ltd. · 1995
- Fluid flow measurement device116US 6,813,964 B1Hospira, Inc. · 2004
- Optical fiber distributed feedback laser101US 5,844,927 AOptoplan AS · 1998
- Sensor and transducer apparatus96US 5,589,639 A1996