G01F 23/606
Using opto-electrically actuated indicating means
Official title: {using opto-electrically actuated indicating means}
G01F23/606 (Using opto-electrically actuated indicating means) appears on 11 US grants and 7 published applications in this corpus.
Search patents in G01F- Granted patents
- 11
- Published applications
- 7
- Assignees
- 12
- Inventors
- 27
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Humidifier23 Sep 2025US 12,422,153 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Systems and methods for monitoring annular fluid level14 May 2024US 11,982,176 B2Saudi Arabian Oil Company
- Liquid level transducer with pivoting and linear motion11 Oct 2016US 9,464,929 B2Texas LFP, LLC
- Liquid level sensor12 May 2015US 9,027,399 B2Hon Hai Precision Industry Co., Ltd.
- Oil tank sight glass monitor3 Oct 2006US 7,116,236 B2Antron Engineering & Machine Co., Inc.
- Reservoir tank and coolant module including the same10 Jul 2025US 2025/0223919 A1
- Humidifier5 Oct 2023US 2023/0314017 A1Beijing Xiaomi Mobile Software Co., Ltd.
- Systems and methods for monitoring annular fluid level27 Jul 2023US 2023/0235661 A1Aramco Overseas Company UK Ltd
- Liquid Level Transducer with Pivoting and Linear Motion5 May 2016US 2016/0123788 A1Texas LFP, LLC
- Liquid level sensor22 Aug 2013US 2013/0213495 A1Hon Hai Precision Industry Co., Ltd.
Most cited
By later US patents
- Differential fiber optic differential pressure sensor114US 4,210,029 ALad Research Industries, Inc. · 1980
- Differential fiber optic proximity sensor37US 4,358,960 ALadd Research Industries, Inc. · 1982
- Liquid detector11US 3,946,625 AAsahi Kasei Kogyo Kabushiki Kaisha · 1976
- Linear digital flowmeter10US 4,774,676 AWaukee Engineering Company Inc. · 1988
- Oil tank sight glass monitor3US 7,116,236 B2Antron Engineering & Machine Co., Inc. · 2006