H04J 3/0685
Clock or time synchronisation in a node
Official title: {Clock or time synchronisation in a node; Intranode synchronisation}
H04J3/0685 (Clock or time synchronisation in a node) appears on 2,155 US grants and 1,661 published applications in this corpus.
Search patents in H04J- Granted patents
- 2,155
- Published applications
- 1,661
- Assignees
- 716
- Inventors
- 4,036
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 18 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 37 | 0 |
| 1997 | 29 | 0 |
| 1998 | 49 | 0 |
| 1999 | 66 | 0 |
| 2000 | 46 | 0 |
| 2001 | 62 | 21 |
| 2002 | 48 | 88 |
| 2003 | 77 | 65 |
| 2004 | 66 | 95 |
| 2005 | 63 | 58 |
| 2006 | 80 | 58 |
| 2007 | 62 | 61 |
| 2008 | 71 | 69 |
| 2009 | 81 | 80 |
| 2010 | 71 | 66 |
| 2011 | 68 | 80 |
| 2012 | 81 | 71 |
| 2013 | 84 | 64 |
| 2014 | 101 | 71 |
| 2015 | 82 | 87 |
| 2016 | 84 | 62 |
| 2017 | 63 | 38 |
| 2018 | 74 | 39 |
| 2019 | 64 | 63 |
| 2020 | 67 | 62 |
| 2021 | 55 | 59 |
| 2022 | 58 | 69 |
| 2023 | 67 | 75 |
| 2024 | 57 | 63 |
| 2025 | 72 | 65 |
| 2026 | 31 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for synchronizing device clocks6 Oct 2026US 12,756,491 B2Bose Corporation
- Communication system with enhanced user datagram protocol support for precision time protocol29 Sep 2026US 12,750,148 B2Outdoor Wireless Networks LLC
- Packet transmission method and apparatus, device, and storage medium8 Sep 2026US 12,732,295 B2Huawei Technologies Co., Ltd.
- System and method for controlling time dilation in time-sensitive networks18 Aug 2026US 12,712,659 B2Dolby Intellectual Property Licensing, LLC
- Clock synchronization using digitally controlled oscillator18 Aug 2026US 12,712,703 B2Mellanox Technologies, Ltd.
- Secondary reference time validation1 Oct 2026US 2026/0303245 A1Nokia Solutions and Networks Oy
- Stateful traffic tracking synchronization in network devices24 Sep 2026US 2026/0291636 A1Hewlett Packard Enterprise Development LP
- Multiple and cascaded redundant disciplined oscillator systems in a spoofing resistant reference time source system and methods thereof20 Aug 2026US 2026/0243900 A1Orolia USA Inc.
- Determining end-to-end transparent clock steps removed20 Aug 2026US 2026/0246553 A1Nokia Solutions and Networks Oy
- Low-latency word alignment for serdes interfaces using inline patterns30 Jul 2026US 2026/0219701 A1QUALCOMM Incorporated
Most cited
By later US patents
- Apparatus and method for digital data transmission over a CATV system using an ATM transport protocol and SCDMA345US 5,745,837 ATerayon Corporation · 1998
- Signatures for facilitating hot upgrades of modular software components305US 6,880,086 B2Ciena Corporation · 2005
- Allocated and dynamic bandwidth management278US 5,748,629 AFujitsu Limited · 1998
- Method for transmitting time information via a data packet network268US 7,372,846 B2Siemens Aktiengesellschaft · 2008
- Broadband switch that manages traffic and method therefor250US 6,188,687 B1Verizon Laboratories Inc. · 2001