G02B 6/3534
The optical element being diffractive, i.e. a grating
Official title: {the optical element being diffractive, i.e. a grating}
G02B6/3534 (The optical element being diffractive, i.e. a grating) appears on 125 US grants and 127 published applications in this corpus.
Search patents in G02B- Granted patents
- 125
- Published applications
- 127
- Assignees
- 71
- Inventors
- 201
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 4 |
| 2002 | 5 | 13 |
| 2003 | 8 | 14 |
| 2004 | 11 | 4 |
| 2005 | 8 | 5 |
| 2006 | 5 | 2 |
| 2007 | 3 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 5 |
| 2014 | 1 | 3 |
| 2015 | 6 | 8 |
| 2016 | 10 | 11 |
| 2017 | 6 | 6 |
| 2018 | 4 | 10 |
| 2019 | 9 | 7 |
| 2020 | 9 | 11 |
| 2021 | 8 | 4 |
| 2022 | 7 | 2 |
| 2023 | 2 | 3 |
| 2024 | 4 | 3 |
| 2025 | 4 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Large scale steerable coherent optical switched arrays18 Nov 2025US 12,474,528 B2Analog Photonics LLC
- Waveguide network13 May 2025US 12,298,567 B2Microsoft Technology Licensing, LLC
- Waveguide network4 Mar 2025US 12,242,114 B2Microsoft Technology Licensing, LLC
- Beam scanning methods for improved eye safety in LiDAR systems25 Feb 2025US 12,235,362 B2The Charles Stark Draper Laboratory, Inc.
- Adaptive LiDAR scanning techniques for improved frame rate and safety6 Aug 2024US 12,055,631 B2The Charles Stark Draper Laboratory, Inc.
- Wavelength selective switch with multiple deflector arrays7 May 2026US 2026/0126591 A1O-Net Technologies (Canada) Inc.
- C and l banded wavelength selective switch with high output port count23 Apr 2026US 2026/0110847 A1Lumentum Operations LLC
- Waveguide network21 Aug 2025US 2025/0264664 A1Microsoft Technology Licensing, LLC
- Adaptive lidar scanning techniques for improved frame rate and safety5 Jun 2025US 2025/0180744 A1The Charles Stark Draper Laboratories, Inc.
- Wavelength selective switch and optical cross-connect device including wavelength selective switch31 Oct 2024US 2024/0365028 A1FUJIFILM Corporation
Most cited
By later US patents
- Multi-wavelength cross-connect optical switch282US 6,097,859 AThe Regents of the University of California · 2000
- Optical switch with moveable holographic optical element121US 7,003,187 B2Rosemount Inc. · 2006
- Optical coupling device utilizing a mirror and cantilevered arm102US 4,626,066 AAT&T Bell Laboratories · 1986
- Vertical displacement device95US 6,940,630 B2University of Florida Research Foundation, Inc. · 2005
- All fiber wavelength selective optical switch82US 5,446,809 AUnited Technologies Corporation · 1995