H04B 10/502
Led transmitters
Official title: {LED transmitters}
H04B10/502 (Led transmitters) appears on 524 US grants and 528 published applications in this corpus.
Search patents in H04B- Granted patents
- 524
- Published applications
- 528
- Assignees
- 300
- Inventors
- 990
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 3 |
| 2002 | 2 | 6 |
| 2003 | 3 | 4 |
| 2004 | 7 | 5 |
| 2005 | 1 | 1 |
| 2006 | 4 | 6 |
| 2007 | 1 | 3 |
| 2008 | 2 | 5 |
| 2009 | 2 | 5 |
| 2010 | 1 | 2 |
| 2011 | 6 | 5 |
| 2012 | 5 | 5 |
| 2013 | 3 | 4 |
| 2014 | 4 | 12 |
| 2015 | 6 | 26 |
| 2016 | 28 | 32 |
| 2017 | 33 | 54 |
| 2018 | 46 | 45 |
| 2019 | 53 | 61 |
| 2020 | 47 | 67 |
| 2021 | 55 | 42 |
| 2022 | 41 | 44 |
| 2023 | 37 | 27 |
| 2024 | 34 | 25 |
| 2025 | 23 | 22 |
| 2026 | 11 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition and method for making picocrystalline artificial borane atoms6 Oct 2026US 12,757,646 B2SemiNuclear, Inc.
- Optical transmitter4 Aug 2026US 12,700,716 B2Sumitomo Electric Device Innovations, Inc.
- Optical signal processing device and optical signal measurement method7 Jul 2026US 12,676,670 B2Tecat Technologies (Suzhou) Limited
- Laser based white light system configured for communication16 Jun 2026US 12,659,034 B2KYOCERA SLD Laser, Inc.
- LED-based photonic communication and processing unit9 Jun 2026US 12,653,069 B2Lightmatter, Inc.
- Optical transceiver24 Sep 2026US 2026/0291611 A1Industrial Technology Research Institute
- Tapers In Optical Chip-to-Chip Interconnects17 Sep 2026US 2026/0276909 A1Tectus Corporation
- Optical Transceiver10 Sep 2026US 2026/0269944 A1
- Communication circuit, semiconductor device, and electronic apparatus10 Sep 2026US 2026/0269946 A1Sanken Electric Co., Ltd.
- Micro-photonics parallel data transmission fabric and interconnect2 Jul 2026US 2026/0189301 A1Intel Corporation
Most cited
By later US patents
- Method and apparatus for an L.E.D. flashlight530US 6,095,661 APPT Vision, Inc. · 2000
- Programmable LED driver226US 6,144,222 AInternational Business Machines Corporation · 2000
- Pointing device having improved automatic gain control and information reporting176US 5,359,348 ASelectech, Ltd. · 1994
- Method and apparatus for L.E.D. illumination173US 6,305,818 B1PPT Vision, Inc. · 2001
- Light emitting diode dot matrix display system with audio output146US 6,445,369 B1The University of Hong Kong · 2002