G01F 23/72
Using magnetically actuated indicating means
Official title: using magnetically actuated indicating means
G01F23/72 (Using magnetically actuated indicating means) appears on 533 US grants and 354 published applications in this corpus.
Search patents in G01F- Granted patents
- 533
- Published applications
- 354
- Assignees
- 334
- Inventors
- 1,028
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 17 | 0 |
| 1990 | 14 | 0 |
| 1991 | 22 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 15 | 0 |
| 1998 | 19 | 0 |
| 1999 | 16 | 0 |
| 2000 | 13 | 0 |
| 2001 | 21 | 4 |
| 2002 | 10 | 8 |
| 2003 | 11 | 10 |
| 2004 | 8 | 6 |
| 2005 | 5 | 8 |
| 2006 | 7 | 6 |
| 2007 | 3 | 13 |
| 2008 | 9 | 5 |
| 2009 | 5 | 9 |
| 2010 | 5 | 17 |
| 2011 | 5 | 12 |
| 2012 | 9 | 10 |
| 2013 | 8 | 10 |
| 2014 | 6 | 10 |
| 2015 | 19 | 31 |
| 2016 | 20 | 17 |
| 2017 | 13 | 18 |
| 2018 | 8 | 24 |
| 2019 | 17 | 14 |
| 2020 | 23 | 24 |
| 2021 | 16 | 22 |
| 2022 | 19 | 18 |
| 2023 | 22 | 15 |
| 2024 | 15 | 10 |
| 2025 | 8 | 16 |
| 2026 | 5 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oil level sensing and fault detection16 Jun 2026US 12,656,166 B2Textron Innovations Inc.
- Refrigerant compressor including an oil level sensor arrangement26 May 2026US 12,638,324 B2Danfoss Commercial Compressors
- Combined fuel level sending unit and fuel fill limit vent valve24 Mar 2026US 12,583,313 B2Whitecap Industries, Inc.
- Wireless drink container for monitoring hydration3 Mar 2026US 12,564,280 B2HidrateSmart LLC
- Level measuring device3 Feb 2026US 12,540,842 B2WIKA Alexander Wiegand SE & Co. KG
- Oil Level Sensing and Fault Detection8 Oct 2026US 2026/0309537 A1Textron Aviation Inc.
- Liquid level metering using inductive technology17 Sep 2026US 2026/0276428 A1Azoteq Holdings Limited
- Piezoelectric sensor and liquid level measuring system20 Aug 2026US 2026/0243595 A1ABB Schweiz AG
- Monitoring fullness of containers13 Aug 2026US 2026/0235430 A1Waste Harmonics, LLC
- Self-cleaning maintenance station and self-cleaning maintenance system30 Jul 2026US 2026/0215649 A1Beijing Roborock Technology Co., Ltd.
Most cited
By later US patents
- Suction fitting with pump control device135US 5,167,041 AKDI American Products, Inc. · 1992
- Swimming pool control system134US 5,730,861 A1998
- Printer using print cartridge with internal pressure regulator110US 5,852,459 AHewlett-Packard Company · 1998
- Suction fitting with pump control device90US 5,347,664 AKDI American Products, Inc. · 1994
- Analog hall-effect liquid level detector and method87US 5,636,548 ATesoro Alaska Petroleum Company · 1997