G04F 8/02
Apparatus for measuring unknown time intervals by electromechanical means: using an electromechanical
Official title: using an electromechanical oscillator {(G04F5/00, G04F10/00 take precedence)}
G04F8/02 (Apparatus for measuring unknown time intervals by electromechanical means: using an electromechanical) appears on 8 US grants and 4 published applications in this corpus.
Search patents in G04F- Granted patents
- 8
- Published applications
- 4
- Assignees
- 9
- Inventors
- 26
- Latest grant
- 23 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
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| 1980 | 1 | 0 |
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| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
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| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Fill level measurement device23 Apr 2019US 10,267,666 B2Endress + Hauser GmbH + Co. KG
- Movement for mechanical chronograph with quartz regulator24 May 2016US 9,348,316 B2Richemont International SA
- Method of displaying elapsed time on a wristworn device and wristworn device displaying same7 Jul 2015US 9,075,393 B2Timex Group USA, Inc., Middlebury
- Piezoelectric acceleration timer7 Apr 2015US 9,001,626 B1Rockwell Collins, Inc.
- Method of displaying elapsed time on a wristworn device and wristworn device displaying same30 Dec 2014US 8,923,096 B1Timex Group USA, Inc.
- Fill level measurement device28 Dec 2017US 2017/0370761 A1Endress + Hauser GmbH + Co. KG
- Movement for mechanical chronograph with quartz regulator6 Aug 2015US 2015/0220064 A1Richemont International SA
- Method of Displaying Elapsed Time on a Wristworn Device and Wristworn Device Displaying Same30 Apr 2015US 2015/0117165 A1Timex Group USA, Inc.
- Analog electronic timepiece having train wheel setting lever12 Feb 2004US 2004/0027923 A1
Most cited
By later US patents
- Stop watch19US 4,211,066 AKabushiki Kaisha Daini Seikosha · 1980
- Display device17US 5,195,062 ACitizen Watch Co., Ltd. · 1993
- Time measurement device13US 6,466,518 B1Seiko Epson Corporation · 2002
- Method of displaying elapsed time on a wristworn device and wristworn device displaying same7US 8,923,096 B1Timex Group USA, Inc. · 2014
- Method of displaying elapsed time on a wristworn device and wristworn device displaying same4US 9,075,393 B2Timex Group USA, Inc., Middlebury · 2015