G02B 6/29323
Coupling to or out of the diffractive element through the lateral surface
Official title: {Coupling to or out of the diffractive element through the lateral surface of the light guide (evanescent grating couplers G02B6/29332)}
G02B6/29323 (Coupling to or out of the diffractive element through the lateral surface) appears on 114 US grants and 96 published applications in this corpus.
Search patents in G02B- Granted patents
- 114
- Published applications
- 96
- Assignees
- 84
- Inventors
- 247
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 8 |
| 2003 | 3 | 7 |
| 2004 | 4 | 8 |
| 2005 | 11 | 1 |
| 2006 | 2 | 6 |
| 2007 | 6 | 4 |
| 2008 | 4 | 4 |
| 2009 | 1 | 0 |
| 2010 | 4 | 7 |
| 2011 | 6 | 4 |
| 2012 | 1 | 3 |
| 2013 | 5 | 3 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 5 | 5 |
| 2017 | 4 | 1 |
| 2018 | 5 | 2 |
| 2019 | 2 | 3 |
| 2020 | 4 | 7 |
| 2021 | 4 | 5 |
| 2022 | 5 | 1 |
| 2023 | 2 | 6 |
| 2024 | 4 | 3 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- On-chip integrated wavelength division multiplexer and chip30 Jan 2025US 2025/0038877 A1Picmore Technology (Suzhou) Ltd.
- Optical side input/output circuit7 Nov 2024US 2024/0369769 A1Nippon Telegraph and Telephone Corporation
Most cited
By later US patents
- Planar holographic optical device for beam expansion and display228US 6,169,613 AYeda Research & Devel Co., Ltd. · 2001
- Holographic optical devices for the transmission of optical signals of a plurality of channels222US 5,682,255 AYeda Research and Development Co. Ltd. · 1997
- Planar holographic optical device212US 5,966,223 AYeda Research and Development Co. Ltd. · 1999
- Method and system for beam expansion in a display device170US 6,805,490 B2Nokia Corporation · 2004
- Optical filters123US 4,946,245 ABritish Telecommunications Public Ltd.Co. · 1990