G04R 20/10
Tuning or receiving
Official title: Tuning or receiving; Circuits therefor
G04R20/10 (Tuning or receiving) appears on 118 US grants and 143 published applications in this corpus.
Search patents in G04R- Granted patents
- 118
- Published applications
- 143
- Assignees
- 35
- Inventors
- 142
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 5 |
| 2004 | 0 | 3 |
| 2005 | 2 | 11 |
| 2006 | 2 | 8 |
| 2007 | 3 | 8 |
| 2008 | 9 | 7 |
| 2009 | 6 | 10 |
| 2010 | 7 | 7 |
| 2011 | 6 | 23 |
| 2012 | 15 | 25 |
| 2013 | 17 | 15 |
| 2014 | 11 | 10 |
| 2015 | 11 | 2 |
| 2016 | 4 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radio-controlled timepiece and method of controlling radio-controlled timepiece17 Feb 2026US 12,554,231 B2Seiko Epson Corporation
- Electronic watch and control method for electronic watch21 Jan 2025US 12,204,290 B2Seiko Epson Corporation
- Electronic timepiece7 Mar 2023US 11,599,068 B2Seiko Epson Corporation
- Electronic watch and method of correcting time difference31 Jan 2023US 11,567,458 B2Seiko Epson Corporation
- Electronic timepiece14 Sep 2021US 11,119,449 B2Seiko Epson Corporation
- Radio-Controlled Timepiece And Method Of Controlling Radio-Controlled Timepiece21 Mar 2024US 2024/0094682 A1Seiko Epson Corporation
- Electronic Watch And Control Method For Electronic Watch11 Aug 2022US 2022/0253018 A1Seiko Epson Corporation
- Electronic Timepiece24 Sep 2020US 2020/0301373 A1Seiko Epson Corporation
- Electronic Watch And Method Of Correcting Time Difference25 Jun 2020US 2020/0201264 A1Seiko Epson Corporation
- Verification of Time Sources9 Aug 2018US 2018/0224558 A1Schweitzer Engineering Laboratories, Inc.
Most cited
By later US patents
- Synchronization method and apparatus for isolated clock system51US 5,999,493 ASurVivaLink Corporation · 1999
- High precision radio signal controlled continuously updated digital clock47US 4,768,178 APrecision Standard Time, Inc. · 1988
- Radio controlled timepiece30US 4,650,344 AJunghans Uhren GmbH · 1987
- Reception circuit, radio-controlled timepiece, and reception circuit control method28US 7,720,452 B2Seiko Epson Corporation · 2010
- Time signal repeater and time correction system using the same26US 6,288,977 B1Citizen Watch Co., Ltd. · 2001