G02B 6/29385
Channel monitoring
Official title: {Channel monitoring, e.g. by tapping (channel monitoring in optical transmission systems H04B10/07)}
G02B6/29385 (Channel monitoring) appears on 95 US grants and 92 published applications in this corpus.
Search patents in G02B- Granted patents
- 95
- Published applications
- 92
- Assignees
- 64
- Inventors
- 230
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 20 |
| 2003 | 10 | 13 |
| 2004 | 14 | 6 |
| 2005 | 6 | 6 |
| 2006 | 10 | 4 |
| 2007 | 6 | 6 |
| 2008 | 5 | 5 |
| 2009 | 3 | 5 |
| 2010 | 4 | 1 |
| 2011 | 2 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 4 | 2 |
| 2016 | 2 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 6 | 6 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Coupling devices and methods, wavelength locking systems and methods, and phase unwrapping systems and methods3 Jun 2025US 12,321,014 B2Apple Inc.
- Secured fiber link system31 Dec 2024US 12,181,713 B2Apriori Network Systems, LLC.
- Wavelength monitoring device and controlling method thereof1 Oct 2024US 12,107,626 B2Nippon Telegraph and Telephone Corporation
- Optical multiplexing circuit and light source30 Jan 2024US 11,886,005 B2Nippon Telegraph and Telephone Corporation
- Secured fiber link system17 Oct 2023US 11,789,206 B2Apriori Network Systems, LLC.
- Secured fiber link system13 Mar 2025US 2025/0085481 A1Apriori Network Systems, LLC.
- Secured fiber link system4 Jan 2024US 2024/0004139 A1Apriori Network Systems, LLC.
- Integrated photonic systems and methods for biosensing4 May 2023US 2023/0133866 A1SiPhox, Inc.
- Coupling Devices and Methods, Wavelength Locking Systems and Methods, and Phase Unwrapping Systems and Methods2 Mar 2023US 2023/0062578 A1Apple Inc.
- Optical Multiplexing Circuit and Light Source14 Jul 2022US 2022/0221649 A1Nippon Telegraph and Telephone Corporation
Most cited
By later US patents
- Photodetector array and optical communication monitor module using the same81US 6,690,002 B2Nippon Sheet Glass Co., Ltd. · 2004
- Fiber optics communications modules60US 4,479,697 AKaptron, Inc. · 1984
- Optical component adapted to monitor a multiwavelength link and add-drop multiplexer using this component, application to optical networks56US 5,748,815 AFrance Telecom · 1998
- Reconfigurable all-optical multiplexers with simultaneous add-drop capability53US 6,549,699 B2Capella Photonics, Inc. · 2003
- Fiber optic devices having volume Bragg grating elements49US 7,031,573 B2PD-LD, Inc. · 2006