H04B 10/532
Polarisation modulation
H04B10/532 (Polarisation modulation) appears on 533 US grants and 526 published applications in this corpus.
Search patents in H04B- Granted patents
- 533
- Published applications
- 526
- Assignees
- 219
- Inventors
- 1,005
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 2 |
| 2002 | 7 | 14 |
| 2003 | 9 | 9 |
| 2004 | 3 | 8 |
| 2005 | 5 | 10 |
| 2006 | 13 | 8 |
| 2007 | 8 | 6 |
| 2008 | 1 | 11 |
| 2009 | 5 | 20 |
| 2010 | 8 | 11 |
| 2011 | 10 | 14 |
| 2012 | 16 | 22 |
| 2013 | 17 | 16 |
| 2014 | 21 | 26 |
| 2015 | 33 | 30 |
| 2016 | 28 | 24 |
| 2017 | 32 | 31 |
| 2018 | 31 | 36 |
| 2019 | 43 | 31 |
| 2020 | 29 | 34 |
| 2021 | 33 | 33 |
| 2022 | 29 | 33 |
| 2023 | 31 | 28 |
| 2024 | 28 | 23 |
| 2025 | 19 | 23 |
| 2026 | 13 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical transmission device and communication device14 Jul 2026US 12,683,689 B2NEC Corporation
- Electronic demultiplexing for dual-polarization (DP) intensity-modulated direct detection (IMDD) optical communication systems7 Jul 2026US 12,676,679 B2Aloe Semiconductor Inc.
- Optical multi-wavelength dual-polarization transceivers7 Jul 2026US 12,676,691 B2Aloe Semiconductor Inc.
- Configurable intensity-modulation direct detection (IMDD) optical transceivers16 Jun 2026US 12,659,064 B2Aloe Semiconductor Inc.
- Self-compensating polarization modulator26 May 2026US 12,640,813 B2Tesat-Spacecom GmbH & Co. KG
- Dual-polarization bidirectional optical devices1 Oct 2026US 2026/0303218 A1
- Optical multi-wavelength dual-polarization transceivers1 Oct 2026US 2026/0303248 A1Aloe Semiconductor Inc.
- Polarization-modulated communication systems.10 Sep 2026US 2026/0269948 A1
- Optical circuit configurations to enable bidirectional optical ports13 Aug 2026US 2026/0238347 A1
- Optical interconnect system with optical pilot assisted reception13 Aug 2026US 2026/0238349 A1Indian Institute of Technology Bombay
Most cited
By later US patents
- Living body inspecting apparatus and noninvasive blood analyzer using the same270US 6,353,750 B1Sysmex Corporation · 2002
- Communication system231US 6,271,790 B1Smith Technology Development · 2001
- Method and apparatus for improving spectral efficiency in wavelength division multiplexed transmission systems196US 6,134,033 ATyco Submarine Systems Ltd. · 2000
- System and method for communication using orbital angular momentum with multiple layer overlay modulation160US 9,077,577 B12015
- Wavelength division multiplexed fiber optic link for RF polarization diversity receiver128US 5,377,035 AHughes Aircraft Company · 1994