H04B 10/614
Comprising one or more polarization beam splitters
Official title: {comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers (H04J14/06 takes precedence)}
H04B10/614 (Comprising one or more polarization beam splitters) appears on 522 US grants and 538 published applications in this corpus.
Search patents in H04B- Granted patents
- 522
- Published applications
- 538
- Assignees
- 192
- Inventors
- 1,027
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 3 | 5 |
| 2008 | 3 | 3 |
| 2009 | 3 | 9 |
| 2010 | 7 | 23 |
| 2011 | 6 | 18 |
| 2012 | 16 | 29 |
| 2013 | 17 | 17 |
| 2014 | 23 | 25 |
| 2015 | 29 | 28 |
| 2016 | 26 | 21 |
| 2017 | 29 | 16 |
| 2018 | 23 | 38 |
| 2019 | 35 | 47 |
| 2020 | 43 | 33 |
| 2021 | 28 | 34 |
| 2022 | 34 | 52 |
| 2023 | 44 | 56 |
| 2024 | 49 | 31 |
| 2025 | 32 | 24 |
| 2026 | 26 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical-to-coherent optical-to-electrical data communication cable assembly29 Sep 2026US 12,750,139 B2
- Optical tracking module chip for wireless optical communication terminal15 Sep 2026US 12,739,035 B2Taara Connect, Inc.
- Digital signal processing circuit, method, receiver, and communication system8 Sep 2026US 12,732,282 B2NEC Corporation
- Single polarization circulator25 Aug 2026US 12,717,083 B2Cisco Technology, Inc.
- Central unit and remote unit25 Aug 2026US 12,719,579 B2Huawei Technologies Co., Ltd.
- System and Method For Coherent Receivers With PCSELS Emitting In Two Directions8 Oct 2026US 2026/0312692 A1II-Vi Delaware, Inc.
- Bi-directional dense wavelength multiplexed optical communication systems1 Oct 2026US 2026/0303217 A1Quintessent Inc.
- Dual-polarization bidirectional optical devices1 Oct 2026US 2026/0303218 A1
- Optical multi-wavelength dual-polarization transceivers1 Oct 2026US 2026/0303248 A1Aloe Semiconductor Inc.
- Polarization based dual-mode optical transceiver17 Sep 2026US 2026/0280714 A1Lumos Infinitas USA Inc.
Most cited
By later US patents
- Optical transmission apparatuses, methods, and systems122US 7,826,752 B1Level 3 Communications, LLC · 2010
- Polarization-dependent and polarization-diversified opto-electronic devices using a strained quantum well80US 5,117,469 ABell Communications Research, Inc. · 1992
- Frequency agile transmitter and receiver architecture for DWDM systems65US 7,209,664 B1Nortel Networks Limited · 2007
- Cross polarization interface canceler62US 6,782,211 B12004
- Multilevel coherent optical system57US 5,416,628 AFondazione Ugo Bordoni · 1995