G02B 6/29316
Light guides comprising a diffractive element
Official title: {Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide (G02B6/02057, G02B6/29332, G02B6/29356 take precedence)}
G02B6/29316 (Light guides comprising a diffractive element) appears on 1,102 US grants and 868 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,102
- Published applications
- 868
- Assignees
- 453
- Inventors
- 1,961
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 11 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 10 | 0 |
| 1997 | 20 | 0 |
| 1998 | 36 | 0 |
| 1999 | 37 | 0 |
| 2000 | 52 | 0 |
| 2001 | 81 | 15 |
| 2002 | 53 | 101 |
| 2003 | 77 | 105 |
| 2004 | 73 | 77 |
| 2005 | 72 | 59 |
| 2006 | 54 | 38 |
| 2007 | 48 | 29 |
| 2008 | 26 | 20 |
| 2009 | 16 | 19 |
| 2010 | 18 | 25 |
| 2011 | 13 | 16 |
| 2012 | 20 | 11 |
| 2013 | 23 | 15 |
| 2014 | 11 | 19 |
| 2015 | 13 | 17 |
| 2016 | 26 | 28 |
| 2017 | 20 | 23 |
| 2018 | 27 | 34 |
| 2019 | 30 | 29 |
| 2020 | 30 | 38 |
| 2021 | 34 | 38 |
| 2022 | 25 | 20 |
| 2023 | 35 | 33 |
| 2024 | 22 | 27 |
| 2025 | 13 | 20 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Technologies for optical demultiplexing with backwards compatibility6 Oct 2026US 12,754,364 B2Intel Corporation
- Apparatus and methods for high-speed and long depth range imaging using optical coherence tomography15 Sep 2026US 12,736,751 B2The General Hospital Corporation
- Contradirectional-filter architecture having low back-reflection15 Sep 2026US 12,736,752 B2Quintessent Inc.
- Optical isolator based on volume Bragg gratings18 Aug 2026US 12,710,578 B2University of Central Florida Foundation, Inc.
- Optical fiber filter with ultra-wide tuning range12 May 2026US 12,625,324 B2II-Vi Delaware, Inc.
- Mode group demultiplexing method and device based on cascaded diffractive network20 Aug 2026US 2026/0243964 A1Sun Yat-Sen University
- Optical fiber that combines and demultiplexes light2 Jul 2026US 2026/0186201 A1NTT, Inc.
- Method and System for Imaging and Analysis of a Biological Specimen18 Jun 2026US 2026/0168894 A1The Board of Trustees of the Leland Stanford Junior University
- High mis-alignment tolerate co-package optics28 May 2026US 2026/0147169 A1International Business Machines Corporation
- Optical sensor for sensing biometric signal and electronic device including same21 May 2026US 2026/0140234 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Multi-plane optical apparatus310US 7,573,640 B2Mirage Innovations Ltd. · 2009
- Fiber optic position and shape sensing device and method relating thereto229US 7,781,724 B2Luna Innovations Incorporated · 2010
- Optical wavelength division multiplexing/demultiplexing system228US 4,773,063 AUniversity of Delaware · 1988
- Planar holographic optical device for beam expansion and display228US 6,169,613 AYeda Research & Devel Co., Ltd. · 2001
- Variable optical fiber Bragg filter arrangement226US 5,007,705 AUnited Technologies Corporation · 1991