G01F 23/64
Of the free float type without mechanical transmission elements
Official title: of the free float type {without mechanical transmission elements}
G01F23/64 (Of the free float type without mechanical transmission elements) appears on 966 US grants and 653 published applications in this corpus.
Search patents in G01F- Granted patents
- 966
- Published applications
- 653
- Assignees
- 593
- Inventors
- 1,814
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 17 | 0 |
| 1978 | 20 | 0 |
| 1979 | 10 | 0 |
| 1980 | 10 | 0 |
| 1981 | 14 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 13 | 0 |
| 1985 | 7 | 0 |
| 1986 | 12 | 0 |
| 1987 | 11 | 0 |
| 1988 | 16 | 0 |
| 1989 | 29 | 0 |
| 1990 | 22 | 0 |
| 1991 | 29 | 0 |
| 1992 | 24 | 0 |
| 1993 | 19 | 0 |
| 1994 | 13 | 0 |
| 1995 | 12 | 0 |
| 1996 | 19 | 0 |
| 1997 | 21 | 0 |
| 1998 | 24 | 0 |
| 1999 | 23 | 0 |
| 2000 | 18 | 0 |
| 2001 | 27 | 6 |
| 2002 | 11 | 12 |
| 2003 | 16 | 16 |
| 2004 | 15 | 16 |
| 2005 | 8 | 17 |
| 2006 | 18 | 14 |
| 2007 | 7 | 33 |
| 2008 | 20 | 9 |
| 2009 | 12 | 19 |
| 2010 | 12 | 27 |
| 2011 | 13 | 22 |
| 2012 | 18 | 12 |
| 2013 | 12 | 21 |
| 2014 | 13 | 23 |
| 2015 | 29 | 38 |
| 2016 | 31 | 37 |
| 2017 | 30 | 40 |
| 2018 | 21 | 41 |
| 2019 | 35 | 32 |
| 2020 | 42 | 38 |
| 2021 | 24 | 33 |
| 2022 | 32 | 43 |
| 2023 | 33 | 31 |
| 2024 | 32 | 25 |
| 2025 | 25 | 22 |
| 2026 | 13 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sensor arrangements, sensor systems, and methods for determining height of liquids in tanks11 Aug 2026US 12,704,398 B1Mopeka Products LLC
- Fill-level indicator for liquid containers4 Aug 2026US 12,698,194 B1
- Cooling device and image forming apparatus30 Jun 2026US 12,669,775 B2KYOCERA Document Solutions Inc.
- 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
- Oil Level Sensing and Fault Detection8 Oct 2026US 2026/0309537 A1Textron Aviation Inc.
- Remote control box integrated with distribution board for smart farm irrigation17 Sep 2026US 2026/0271842 A1Korea Agriculture Institute Corporation
- 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
Most cited
By later US patents
- Automated statistical inventory reconcilation system for convenience stores and auto/truck service stations184US 5,400,253 ASouthern Power, Inc. · 1995
- Fluid monitoring apparatus and method148US 7,878,058 B2Walker Engineering Company · 2011
- Suction fitting with pump control device135US 5,167,041 AKDI American Products, Inc. · 1992
- Swimming pool control system134US 5,730,861 A1998
- System for registration of a fluid level in a receptacle128US 6,554,381 B2Pelikan Produktions AG · 2003