G02B 6/3542
Non-blocking switch
Official title: {Non-blocking switch, e.g. with multiple potential paths between multiple inputs and outputs, the establishment of one switching path not preventing the establishment of further switching paths}
G02B6/3542 (Non-blocking switch) appears on 94 US grants and 80 published applications in this corpus.
Search patents in G02B- Granted patents
- 94
- Published applications
- 80
- Assignees
- 61
- Inventors
- 197
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 5 |
| 2002 | 13 | 12 |
| 2003 | 5 | 6 |
| 2004 | 11 | 4 |
| 2005 | 3 | 4 |
| 2006 | 5 | 1 |
| 2007 | 2 | 2 |
| 2008 | 0 | 2 |
| 2009 | 2 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 4 |
| 2012 | 2 | 3 |
| 2013 | 0 | 2 |
| 2014 | 4 | 0 |
| 2015 | 2 | 3 |
| 2016 | 4 | 8 |
| 2017 | 7 | 5 |
| 2018 | 4 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 4 | 4 |
| 2022 | 1 | 1 |
| 2023 | 3 | 4 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-directional adaptive optical device17 Feb 2026US 12,554,069 B2Ommatidia LIDAR S.L.
- Systems, methods, and apparatus for optical transceiver with multiple switch state configurations12 Mar 2024US 11,927,807 B2Juniper Networks, Inc.
- Steering of LIDAR output signals18 Jul 2023US 11,703,598 B2SiLC Technologies, Inc.
- Glass fiber hole plates for 2D fiber collimators and methods for alignment and fabrication for optical switching applications18 Apr 2023US 11,630,265 B2Google Inc.
- System of large scale robotic fiber cross-connects using multi-fiber trunk reservation14 Feb 2023US 11,579,382 B2Telescent Inc.
- Optical circuit switch (ocs) with multiplexed structure17 Sep 2026US 2026/0276897 A1II-Vi Delaware, Inc.
- Compact wavelength selective switch15 Jan 2026US 2026/0016636 A1Molex Incorporated
- Connection determination method, optical cross interconnection unit, apparatus, switching device, medium5 Oct 2023US 2023/0319440 A1Zte Corporation
- Multi-directional adaptive optical device14 Sep 2023US 2023/0288638 A1Ommatidia LIDAR S.L.
- System of large- scale robotic fiber cross-connects using multi-fiber trunk reservation13 Jul 2023US 2023/0221502 A1Telescent Inc.
Most cited
By later US patents
- Multi-wavelength cross-connect optical switch282US 6,097,859 AThe Regents of the University of California · 2000
- Strictly non-blocking scalable matrix optical switch101US 6,005,998 ALucent Technologies Inc. · 1999
- Multi-wavelength cross-connect optical switch82US 6,289,145 B1The Regents of the University of California · 2001
- Apparatus and method for 2-dimensional steered-beam NxM optical switch using single-axis mirror arrays and relay optics77US 6,330,102 B1Onix Microsystems, Inc. · 2001
- Method and apparatus for providing loss equalization and adjustment in a fiber optic network58US 6,236,481 B1Astarte Fiber Networks, Inc. · 2001