G04R 20/28
Tuning or receiving
Official title: Tuning or receiving; Circuits therefor
G04R20/28 (Tuning or receiving) appears on 15 US grants and 21 published applications in this corpus.
Search patents in G04R- Granted patents
- 15
- Published applications
- 21
- Assignees
- 14
- Inventors
- 44
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 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 | 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 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 5 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Watch case comprising a near-field communication device8 Jul 2025US 12,353,174 B2The Swatch Group Research and Development Ltd
- Radio-controlled timepiece, system, and method for controlling radio-controlled timepiece25 Jun 2024US 12,019,409 B2Seiko Epson Corporation
- Timepiece, control method for change of time, and storage medium18 Jul 2023US 11,703,812 B2Casio Computer Co., Ltd.
- Method for setting a quartz watch8 Feb 2022US 11,243,499 B2ETA SA Manufacture Horlogere Suisse
- Hardware centralized time synchronization hub for an autonomous driving vehicle29 Sep 2020US 10,788,841 B2Baidu USA LLC
- Watch case comprising a near-field communication device2 Jun 2022US 2022/0171345 A1The Swatch Group Research and Development Ltd
- Radio-Controlled Timepiece, System, And Method For Controlling Radio-Controlled Timepiece12 Aug 2021US 2021/0247724 A1Seiko Epson Corporation
- Time Correction Method, And Time Correction System27 May 2021US 2021/0157279 A1Seiko Epson Corporation
- Timepiece, control method for change of time, and storage medium2 Apr 2020US 2020/0103832 A1Casio Computer Co., Ltd.
- Hardware centralized time synchronization hub for an autonomous driving vehicle27 Feb 2020US 2020/0064859 A1Baidu USA LLC
Most cited
By later US patents
- Time correction system, time correction instruction device, pointer type timepiece, and time correction method49US 7,167,417 B2Seiko Epson Corporation · 2007
- Automatic system for setting digital watches16US 4,211,065 AHughes Aircraft Company · 1980
- Electronic timepiece5US 9,760,063 B2Casio Computer Co., Ltd. · 2017
- Supporting virtually simultaneous operation of dual wireless protocols in a single device4US 9,635,495 B2SilverPlus, Inc. · 2017
- Indicators for external variables consisting of singular and multiple depletion cells3US 10,338,537 B2Vision Works IP Corporation · 2019