G01F 23/2845
For discrete levels
Official title: {for discrete levels (G01F23/288, G01F23/292 take precedence)}
G01F23/2845 (For discrete levels) appears on 85 US grants and 95 published applications in this corpus.
Search patents in G01F- Granted patents
- 85
- Published applications
- 95
- Assignees
- 63
- Inventors
- 206
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 2 | 3 |
| 2007 | 0 | 3 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 0 | 3 |
| 2012 | 2 | 1 |
| 2013 | 2 | 5 |
| 2014 | 1 | 5 |
| 2015 | 8 | 1 |
| 2016 | 4 | 5 |
| 2017 | 3 | 1 |
| 2018 | 4 | 6 |
| 2019 | 5 | 4 |
| 2020 | 3 | 3 |
| 2021 | 2 | 7 |
| 2022 | 4 | 12 |
| 2023 | 9 | 9 |
| 2024 | 5 | 10 |
| 2025 | 7 | 5 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Level meter having a radio wave transmission unit and a radio wave reception unit4 Aug 2026US 12,698,998 B2Keyence Corporation
- Information processing device and non-transitory computer-readable storage medium storing program7 Jul 2026US 12,674,698 B2Seiko Epson Corporation
- Apparatus for handling and/or measuring a liquid contained in a container and an empty level indicator system for detecting a corresponding empty level12 May 2026US 12,624,981 B2Ecolab USA Inc.
- Emptying detection device, emptying system and emptying detection method21 Apr 2026US 12,607,494 B2Otto Id Solutions GmbH
- Wireless drink container for monitoring hydration3 Mar 2026US 12,564,280 B2HidrateSmart LLC
- A Commodity Monitoring System and Related Methods23 Jul 2026US 2026/0210749 A1
- Wireless drink container for monitoring hydration9 Jul 2026US 2026/0191348 A1HidrateSmart LLC
- Modulating makeup fluid control systems and methods for same22 Jan 2026US 2026/0022847 A1Pure Humidifier Co.
- Liquid level detector18 Dec 2025US 2025/0383223 A1
- Method for detecting the presence of a liquid in a container by means of a near-field communication circuit30 Oct 2025US 2025/0334440 A1Continental Automotive Technologies GmbH
Most cited
By later US patents
- Noninvasive electromagnetic fluid level sensor124US 6,192,752 B1Zevex, Inc. · 2001
- Micropower RF material proximity sensor52US 5,832,772 AThe Regents of the University of California · 1998
- Method for measuring material level in a container using RFID tags48US 7,113,125 B2International Business Machines Corporation · 2006
- Disposable electromagnetic fluid sensor39US 6,023,970 A2000
- Sensor and method for ullage level and flow detection38US 4,833,918 ACannonBear, Inc. · 1989