G04G 19/02
Conversion or regulation of current or voltage
G04G19/02 (Conversion or regulation of current or voltage) appears on 124 US grants and 69 published applications in this corpus.
Search patents in G04G- Granted patents
- 124
- Published applications
- 69
- Assignees
- 57
- Inventors
- 221
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 2 | 3 |
| 2014 | 2 | 4 |
| 2015 | 4 | 2 |
| 2016 | 3 | 4 |
| 2017 | 1 | 6 |
| 2018 | 4 | 3 |
| 2019 | 4 | 9 |
| 2020 | 2 | 10 |
| 2021 | 5 | 5 |
| 2022 | 4 | 3 |
| 2023 | 6 | 1 |
| 2024 | 6 | 3 |
| 2025 | 2 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electronic timepiece, data processing method, and storage medium storing program2 Jun 2026US 12,645,186 B2Casio Computer Co., Ltd.
- Recharging device for an electronic or electromechanical watch and assembly thereof3 Feb 2026US 12,543,501 B2The Swatch Group Research and Development Ltd
- Electronic apparatus, power feeding control method, and non-transitory recording medium25 Mar 2025US 12,261,468 B2Casio Computer Co., Ltd.
- Solar panel, display device, and timepiece21 Jan 2025US 12,204,286 B2Casio Computer Co., 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
- Voltage control circuit, electronic timepiece24 Sep 2026US 2026/0288082 A1Citizen Watch Co., Ltd.
- Solar movement and timepiece17 Sep 2026US 2026/0277168 A1Seiko Watch Kabushiki Kaisha (Trading AS Seiko Watch Corporation)
- Voltage detection circuit and watch20 Aug 2026US 2026/0244161 A1Citizen Watch Co., Ltd.
- Electronic device and operation method thereof6 Aug 2026US 2026/0229983 A1Samsung Electronics Co., Ltd.
- Band Identification for a Wearable Computing Device14 Aug 2025US 2025/0258463 A1Google Inc.
Most cited
By later US patents
- AC driver having three power supply voltages including an internally generated voltage122US 6,118,219 ACitizen Watch Co., Ltd. · 2000
- Circuit for obtaining DC voltage higher than power source voltage87US 4,061,929 AKabushiki Kaisha Daini Seikosha · 1977
- Capacitive voltage converter employing CMOS switches77US 3,975,671 AIntel Corporation · 1976
- Electronic apparatus65US 6,122,185 ASeiko Instruments R&D Center Inc. · 2000
- Direct current power converters employing digital techniques used in electronic timekeeping apparatus63US 3,955,353 AOptel Corporation · 1976