G04C 3/12
Driven by piezoelectric means
Official title: driven by piezoelectric means; driven by magneto-strictive means
G04C3/12 (Driven by piezoelectric means) appears on 75 US grants and 72 published applications in this corpus.
Search patents in G04C- Granted patents
- 75
- Published applications
- 72
- Assignees
- 25
- Inventors
- 133
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 0 |
| 2003 | 3 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 4 |
| 2006 | 1 | 3 |
| 2007 | 1 | 7 |
| 2008 | 4 | 7 |
| 2009 | 5 | 0 |
| 2010 | 5 | 4 |
| 2011 | 3 | 1 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 9 |
| 2015 | 7 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 9 |
| 2020 | 2 | 2 |
| 2021 | 3 | 3 |
| 2022 | 5 | 3 |
| 2023 | 2 | 3 |
| 2024 | 2 | 7 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Microelectromechanical system for moving a mechanical part in two opposite directions11 Aug 2026US 12,706,551 B2Centre National de la Recherche Scientifique (CNRS)
- Rotary piezoelectric motor, in particular for watchmaking24 Jun 2025US 12,341,443 B2The Swatch Group Research and Development Ltd
- Horological movement provided with an oscillator comprising a piezoelectric spring22 Apr 2025US 12,282,298 B2The Swatch Group Research and Development Ltd
- Horological movement equipped with an oscillator comprising a piezoelectric balance-spring15 Apr 2025US 12,276,944 B2The Swatch Group Research and Development Ltd
- Wearable object, in particular watch bracelet, comprising a power supply device provided with an electromechanical converter17 Dec 2024US 12,169,391 B2The Swatch Group Research and Development Ltd
- Electronically Controlled Mechanical Timepiece18 Sep 2025US 2025/0291317 A1Seiko Epson Corporation
- Timepiece10 Oct 2024US 2024/0337985 A1Realization Desal AG
- Timepiece29 Aug 2024US 2024/0288829 A1Realization Desal AG
- Microelectromechanical System for Moving a Mechanical Part in Two Opposite Directions18 Jul 2024US 2024/0243672 A1Centre National de la Recherche Scientifique (CNRS)
- Shock-resistant piezoelectric rotary motor, in particular for watchmaking27 Jun 2024US 2024/0210889 A1The Swatch Group Research and Development Ltd
Most cited
By later US patents
- Wristwatch structure, electronic crown for wristwatch, and wristwatch having display116US 9,223,296 B2Princo Middle East FZE · 2015
- Wristwatch structure, electronic core for wristwatch, and method for manufacturing wristwatch82US 9,256,209 B2Princo Middle East FZE · 2016
- Piezoelectric transducer, piezoelectric actuator, and portable device45US 7,929,382 B2Seiko Epson Corporation · 2011
- Microelectromechanical ratcheting apparatus44US 6,211,599 B1Sandia Corporation · 2001
- Piezoelectric actuator and electronic equipment with piezoelectric actuator43US 7,583,564 B2Seiko Epson Corporation · 2009