H04J 3/02
Details
Official title: Details (electronic switching or gating H03K17/00)
H04J3/02 (Details) appears on 11,447 US grants and 8,818 published applications in this corpus.
Search patents in H04J- Granted patents
- 11,447
- Published applications
- 8,818
- Assignees
- 2,447
- Inventors
- 18,713
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 56 | 0 |
| 1977 | 46 | 0 |
| 1978 | 42 | 0 |
| 1979 | 35 | 0 |
| 1980 | 30 | 0 |
| 1981 | 34 | 0 |
| 1982 | 47 | 0 |
| 1983 | 47 | 0 |
| 1984 | 38 | 0 |
| 1985 | 40 | 0 |
| 1986 | 52 | 0 |
| 1987 | 59 | 0 |
| 1988 | 91 | 0 |
| 1989 | 100 | 0 |
| 1990 | 92 | 0 |
| 1991 | 107 | 0 |
| 1992 | 116 | 0 |
| 1993 | 127 | 0 |
| 1994 | 171 | 0 |
| 1995 | 166 | 0 |
| 1996 | 219 | 0 |
| 1997 | 192 | 0 |
| 1998 | 319 | 0 |
| 1999 | 254 | 0 |
| 2000 | 226 | 0 |
| 2001 | 251 | 96 |
| 2002 | 235 | 374 |
| 2003 | 280 | 387 |
| 2004 | 286 | 386 |
| 2005 | 278 | 347 |
| 2006 | 374 | 352 |
| 2007 | 316 | 456 |
| 2008 | 361 | 413 |
| 2009 | 355 | 378 |
| 2010 | 391 | 391 |
| 2011 | 369 | 333 |
| 2012 | 396 | 324 |
| 2013 | 402 | 387 |
| 2014 | 461 | 389 |
| 2015 | 426 | 386 |
| 2016 | 410 | 377 |
| 2017 | 362 | 262 |
| 2018 | 346 | 298 |
| 2019 | 365 | 309 |
| 2020 | 338 | 354 |
| 2021 | 308 | 342 |
| 2022 | 332 | 321 |
| 2023 | 329 | 349 |
| 2024 | 303 | 348 |
| 2025 | 302 | 278 |
| 2026 | 165 | 181 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04J 3/06Synchronising arrangements8,855
- H04J 3/14Monitoring arrangements1,478
- H04J 3/04Distributors combined with modulators or demodulators637
- H04J 3/08Intermediate station arrangements610
- H04J 3/12Arrangements providing for calling or supervisory signals595
- H04J 3/10Arrangements for reducing cross-talk between channels115
- H04J 3/025Filter arrangements16
Recent patents
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- Communication system with enhanced user datagram protocol support for precision time protocol29 Sep 2026US 12,750,148 B2Outdoor Wireless Networks LLC
- Apparatus and method for two-way delay error compensation in communication system29 Sep 2026US 12,750,149 B2Electronics and Telecommunications Research Institute
- Communication method and apparatus8 Oct 2026US 2026/0312710 A1Huawei Technologies Co., Ltd.
- Time synchronization techniques8 Oct 2026US 2026/0312711 A1Dell Products L. P.
- Small form-factor pluggable device8 Oct 2026US 2026/0312903 A1Schweitzer Engineering Laboratories, Inc.
- Sensing-based clock synchronization8 Oct 2026US 2026/0313614 A1QUALCOMM Incorporated
- Secondary reference time validation1 Oct 2026US 2026/0303245 A1Nokia Solutions and Networks Oy
Most cited
By later US patents
- System and method for synchronizing operations among a plurality of independently clocked digital data processing devices1,949US 8,234,395 B2Sonos, Inc. · 2012
- Multimedia wired/wireless content synchronization system and method1,810US 6,631,410 B1Sharp Laboratories of America, Inc. · 2003
- System for synchronizing a plurality of nodes to concurrently generate output signals by adjusting relative timelags based on a maximum estimated timelag1,773US 5,923,902 AYamaha Corporation · 1999
- Method and apparatus for demodulating signals in a pulse oximetry system1,090US 6,229,856 B1Masimo Corporation · 2001
- Method and apparatus for demodulating signals in a pulse oximetry system1,044US 6,643,530 B2Masimo Corporation · 2003