H04L 12/44
Star or tree networks
H04L12/44 (Star or tree networks) appears on 1,393 US grants and 1,100 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,393
- Published applications
- 1,100
- Assignees
- 496
- Inventors
- 2,533
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 19 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 23 | 0 |
| 1995 | 26 | 0 |
| 1996 | 40 | 0 |
| 1997 | 43 | 0 |
| 1998 | 46 | 0 |
| 1999 | 34 | 0 |
| 2000 | 34 | 0 |
| 2001 | 40 | 5 |
| 2002 | 26 | 36 |
| 2003 | 32 | 34 |
| 2004 | 22 | 35 |
| 2005 | 18 | 44 |
| 2006 | 33 | 37 |
| 2007 | 22 | 71 |
| 2008 | 45 | 58 |
| 2009 | 32 | 42 |
| 2010 | 37 | 26 |
| 2011 | 33 | 23 |
| 2012 | 31 | 20 |
| 2013 | 40 | 21 |
| 2014 | 29 | 28 |
| 2015 | 36 | 20 |
| 2016 | 22 | 37 |
| 2017 | 36 | 71 |
| 2018 | 34 | 62 |
| 2019 | 77 | 56 |
| 2020 | 57 | 83 |
| 2021 | 87 | 73 |
| 2022 | 67 | 76 |
| 2023 | 51 | 66 |
| 2024 | 78 | 40 |
| 2025 | 37 | 24 |
| 2026 | 18 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vehicle sensor management method, apparatus, and system18 Aug 2026US 12,709,286 B2Yinwang Intelligent Technologies Co., Ltd.
- Simultaneous transmit signals and receive signals4 Aug 2026US 12,701,032 B2Rtx Bbn Technologies, Inc.
- Switch configuration, network system and control method28 Jul 2026US 12,695,712 B2NTT, Inc.
- Independent datastore in a network routing environment9 Jun 2026US 12,652,192 B2Arrcus Inc.
- Vehicle data communication system, electronic control unit, and communication band setting program9 Jun 2026US 12,652,336 B2Denso Corporation
- Blocking an unauthorised user or taking another corrective action across ethernet virtual private network (evpn) fabric during rapid media access control (mac) movement6 Aug 2026US 2026/0230346 A1Juniper Networks, Inc.
- Sanitary system9 Jul 2026US 2026/0193872 A1Geberit International AG
- Communication System, Communication Method, and Related Apparatus18 Jun 2026US 2026/0172491 A1Shenzhen Yinwang Intelligent Technologies Co., Ltd.
- Signal processing device and vehicle display apparatus including the same14 May 2026US 2026/0133819 A1LG Electronics Inc.
- Signal processing device and vehicle display apparatus including the same14 May 2026US 2026/0133845 A1LG Electronics Inc.
Most cited
By later US patents
- Method and system for monitoring computer networks and equipment356US 6,714,977 B1Netbotz, Inc. · 2004
- Network hub with integrated bridge335US 5,432,907 ANetwork Resources Corporation · 1995
- Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith320US 6,275,990 B1ADC Telecommunications, Inc. · 2001
- Method and means for demand accessing and broadcast transmission among ports in a distributed star network286US 4,347,498 AInternational Business Machines Corporation · 1982
- Method and apparatus for communications from a non-ATM communication medium to an ATM communication medium274US 5,420,858 ASynOptics Communications, Inc. · 1995