H04L 12/2852
Metropolitan area networks
Official title: {Metropolitan area networks}
H04L12/2852 (Metropolitan area networks) appears on 177 US grants and 103 published applications in this corpus.
Search patents in H04L- Granted patents
- 177
- Published applications
- 103
- Assignees
- 98
- Inventors
- 280
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 4 |
| 2003 | 3 | 6 |
| 2004 | 0 | 3 |
| 2005 | 7 | 9 |
| 2006 | 7 | 4 |
| 2007 | 3 | 4 |
| 2008 | 2 | 3 |
| 2009 | 3 | 7 |
| 2010 | 15 | 8 |
| 2011 | 10 | 4 |
| 2012 | 4 | 7 |
| 2013 | 5 | 4 |
| 2014 | 10 | 5 |
| 2015 | 3 | 4 |
| 2016 | 5 | 2 |
| 2017 | 3 | 9 |
| 2018 | 5 | 7 |
| 2019 | 4 | 3 |
| 2020 | 4 | 1 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Edge optimized transrating system11 Jun 2024US 12,010,370 B2Portsmouth Network Corporation
- Edge optimized transrating system5 Sep 2023US 11,750,871 B2Orckit IP, LLC
- Optimizations for PE-CE protocol session handling in a multi-homed topology30 May 2023US 11,665,091 B2Cisco Technology, Inc.
- Edge optimized transrating system30 Aug 2022US 11,432,028 B2Orckit IP, LLC
- Method and device for receiving oam block10 Jul 2025US 2025/0226927 A1China Mobile Communication Co., Ltd Research Institute
- Edge optimized transrating system15 Aug 2024US 2024/0276045 A1Portsmouth Network Corporation
- Edge optimized transrating system23 Nov 2023US 2023/0379523 A1Orckit IP, LLC
- Rate adaptation method and apparatus18 May 2023US 2023/0155715 A1Huawei Technologies Co., Ltd.
- Edge optimized transrating system24 Nov 2022US 2022/0377397 A1Orckit IP, LLC
Most cited
By later US patents
- Scalable multimedia network602US 5,555,244 AIntegrated Network Corporation · 1996
- Communication system architecture and operating methodology providing a virtual neighborhood network295US 7,142,503 B1Nortel Networks Limited · 2006
- Scalable multimedia network224US 5,673,265 AIntegrated Network Corporation · 1997
- Scalable multimedia network167US 5,740,176 ADAGAZ Technologies, Inc. · 1998
- Scalable multimedia network157US 6,272,151 B1Cisco Technology, Inc. · 2001