H04J 14/0204
Broadcast and select arrangements
Official title: {Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping}
H04J14/0204 (Broadcast and select arrangements) appears on 543 US grants and 556 published applications in this corpus.
Search patents in H04J- Granted patents
- 543
- Published applications
- 556
- Assignees
- 167
- Inventors
- 863
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 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 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 4 |
| 2002 | 15 | 47 |
| 2003 | 20 | 22 |
| 2004 | 12 | 34 |
| 2005 | 17 | 30 |
| 2006 | 22 | 31 |
| 2007 | 27 | 25 |
| 2008 | 22 | 20 |
| 2009 | 26 | 28 |
| 2010 | 27 | 34 |
| 2011 | 18 | 28 |
| 2012 | 27 | 45 |
| 2013 | 30 | 34 |
| 2014 | 45 | 26 |
| 2015 | 32 | 19 |
| 2016 | 16 | 25 |
| 2017 | 31 | 17 |
| 2018 | 16 | 15 |
| 2019 | 18 | 10 |
| 2020 | 10 | 13 |
| 2021 | 14 | 14 |
| 2022 | 14 | 10 |
| 2023 | 10 | 8 |
| 2024 | 12 | 7 |
| 2025 | 4 | 3 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical add drop multiplexers with asymmetrical filtering23 Jun 2026US 12,665,692 B2Equinix, Inc.
- Photonic integrated circuit and opto-electronic system comprising the same17 Mar 2026US 12,580,672 B2Effect Photonics B.V.
- Wavelength reference having repeating spectral features and unique spectral features24 Feb 2026US 12,560,754 B2II-Vi Delaware, Inc.
- Scalable add/drop colorless, directionless, and contentionless optical architectures8 Jul 2025US 12,355,550 B2Ciena Corporation
- Satellite system with networked gateways20 May 2025US 12,308,884 B1
- Optical add drop multiplexers with asymmetrical filtering17 Sep 2026US 2026/0280744 A1Equinix, Inc.
- Optical communication network system20 Aug 2026US 2026/0246556 A1Keio University
- Network architecture6 Aug 2026US 2026/0230732 A1UCL Business PLC
- Network architecture9 Jul 2026US 2026/0197566 A1UCL Business PLC
- Wavelength reference having repeating spectral features and unique spectral features4 Jun 2026US 2026/0153669 A1II-Vi Delaware, Inc.
Most cited
By later US patents
- Modular all-optical cross-connect126US 6,614,953 B2Photuris, Inc. · 2003
- Optical system with tunable in-fiber gratings114US 5,579,143 ACiena Corporation · 1996
- Switch and insertion networks in optical cable TV system97US 5,659,351 ACiena Corporation · 1997
- Variable-attenuation tunable optical router96US 5,706,375 AJDS Fitel Inc. · 1998
- Optical amplifiers with flattened gain curves92US 5,557,442 ACiena Corporation · 1996