G02B 27/4272
Having plural diffractive elements positioned sequentially along the optical path
Official title: {having plural diffractive elements positioned sequentially along the optical path}
G02B27/4272 (Having plural diffractive elements positioned sequentially along the optical path) appears on 761 US grants and 848 published applications in this corpus.
Search patents in G02B- Granted patents
- 761
- Published applications
- 848
- Assignees
- 331
- Inventors
- 1,298
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 8 | 5 |
| 2002 | 8 | 17 |
| 2003 | 11 | 9 |
| 2004 | 12 | 14 |
| 2005 | 7 | 12 |
| 2006 | 9 | 18 |
| 2007 | 10 | 10 |
| 2008 | 10 | 16 |
| 2009 | 8 | 22 |
| 2010 | 16 | 24 |
| 2011 | 18 | 14 |
| 2012 | 18 | 22 |
| 2013 | 17 | 9 |
| 2014 | 11 | 7 |
| 2015 | 8 | 19 |
| 2016 | 17 | 41 |
| 2017 | 30 | 43 |
| 2018 | 36 | 35 |
| 2019 | 41 | 60 |
| 2020 | 58 | 98 |
| 2021 | 57 | 86 |
| 2022 | 74 | 88 |
| 2023 | 71 | 61 |
| 2024 | 56 | 49 |
| 2025 | 55 | 48 |
| 2026 | 25 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical computing device and optical computing method15 Sep 2026US 12,736,721 B2Fujikura Ltd.
- Waveguides having integrated spacers, waveguides having edge absorbers, and methods for making the same25 Aug 2026US 12,717,077 B2Magic Leap, Inc.
- Diffractive-based optical system for head-mounted display device25 Aug 2026US 12,717,165 B2Valve Corporation
- Inkjet gradient index material to modulate grating diffraction efficiency18 Aug 2026US 12,710,579 B2APPLIED Materials.Inc.
- Waveguide device and optical engine18 Aug 2026US 12,710,592 B2HTC Corporation
- Display structure8 Oct 2026US 2026/0309989 A1Dispelix Oy
- Waveguides having integrated spacers, waveguides having edge absorbers, and methods for making the same1 Oct 2026US 2026/0299187 A1Magic Leap, Inc.
- Optical waveguide device and ar display apparatus1 Oct 2026US 2026/0299292 A1Beijing BOE Technology Development Co., Ltd.
- Display structure17 Sep 2026US 2026/0276996 A1Dispelix Oy
- Waveguide and diffraction grating for augmented reality or virtual reality display for reducing the visible appearance of grating structures10 Sep 2026US 2026/0267143 A1Snap Inc.
Most cited
By later US patents
- Compact head-up display521US 4,711,512 AEnvironmental Research Institute of Michigan · 1987
- Optical displays419US 8,233,204 B1Rockwell Collins, Inc. · 2012
- Device for expanding an exit pupil in two dimensions316US 8,160,411 B2Nokia Corporation · 2012
- Multi-plane optical apparatus310US 7,573,640 B2Mirage Innovations Ltd. · 2009
- Optical device and virtual image display device308US 7,418,170 B2Sony Corporation · 2008