G04R 20/02
The radio signal being sent by a satellite
Official title: the radio signal being sent by a satellite, e.g. GPS
G04R20/02 (The radio signal being sent by a satellite) appears on 436 US grants and 475 published applications in this corpus.
Search patents in G04R- Granted patents
- 436
- Published applications
- 475
- Assignees
- 161
- Inventors
- 565
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 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 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 2 |
| 2002 | 7 | 5 |
| 2003 | 7 | 6 |
| 2004 | 1 | 5 |
| 2005 | 6 | 7 |
| 2006 | 3 | 6 |
| 2007 | 2 | 7 |
| 2008 | 7 | 10 |
| 2009 | 10 | 22 |
| 2010 | 10 | 12 |
| 2011 | 14 | 16 |
| 2012 | 11 | 19 |
| 2013 | 23 | 22 |
| 2014 | 17 | 22 |
| 2015 | 27 | 39 |
| 2016 | 35 | 45 |
| 2017 | 34 | 38 |
| 2018 | 24 | 32 |
| 2019 | 20 | 32 |
| 2020 | 31 | 34 |
| 2021 | 20 | 29 |
| 2022 | 22 | 14 |
| 2023 | 36 | 18 |
| 2024 | 17 | 19 |
| 2025 | 17 | 6 |
| 2026 | 13 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electronic timepiece and information acquisition method15 Sep 2026US 12,736,925 B2Casio Computer Co., Ltd.
- Auxiliary precision timekeeper for GPS receiver15 Sep 2026US 12,736,926 B2BAE Systems Information and Electronic Systems Integration Inc.
- Systems and methods for hyper-precise time operations28 Jul 2026US 12,696,228 B2Verizon Patent and Licensing Inc.
- Electronic control unit clock14 Jul 2026US 12,679,403 B1Zoox, Inc.
- Electronic timepiece, storage medium storing program, and time correction method16 Jun 2026US 12,656,741 B2Casio Computer Co., Ltd.
- Electronic timepiece, storage medium storing program, and time correction method17 Sep 2026US 2026/0277165 A1Casio Computer Co., Ltd.
- Satellite signal propagation delay test device20 Aug 2026US 2026/0244163 A1Viavi Solution Inc.
- Data Logging In Aerial Platform13 Aug 2026US 2026/0237255 A1Skydio, Inc.
- Reception device and method for controlling reception device13 Aug 2026US 2026/0239243 A1Sony Group Corporation
- GNSS Time Synchronization in Redundant Systems30 Apr 2026US 2026/0118833 A1Waymo LLC
Most cited
By later US patents
- GPS based time determining system and method686US 5,724,316 ADelco Electronics Corporation · 1998
- Method and apparatus for satellite positioning system based time measurement436US 5,812,087 ASnapTrack, Inc. · 1998
- Method and apparatus for satellite positioning system based time measurement312US 6,052,081 ASnapTrack, Inc. · 2000
- Automatic time set in a television system309US 5,812,205 AStarsight Telecast, Inc. · 1998
- Method and apparatus for satellite positioning system based time measurement217US 6,239,742 B1SnapTrack, Inc. · 2001