G02B 27/0944
Diffractive optical elements
Official title: {Diffractive optical elements, e.g. gratings, holograms (gratings per se G02B5/18; holograms used as optical elements per se G02B5/32)}
G02B27/0944 (Diffractive optical elements) appears on 661 US grants and 780 published applications in this corpus.
Search patents in G02B- Granted patents
- 661
- Published applications
- 780
- Assignees
- 415
- Inventors
- 1,472
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 4 |
| 2002 | 7 | 6 |
| 2003 | 3 | 8 |
| 2004 | 10 | 12 |
| 2005 | 10 | 19 |
| 2006 | 7 | 25 |
| 2007 | 8 | 15 |
| 2008 | 12 | 22 |
| 2009 | 16 | 17 |
| 2010 | 16 | 15 |
| 2011 | 10 | 27 |
| 2012 | 9 | 12 |
| 2013 | 17 | 15 |
| 2014 | 17 | 9 |
| 2015 | 11 | 26 |
| 2016 | 12 | 21 |
| 2017 | 24 | 35 |
| 2018 | 30 | 48 |
| 2019 | 32 | 71 |
| 2020 | 64 | 79 |
| 2021 | 55 | 62 |
| 2022 | 66 | 69 |
| 2023 | 51 | 48 |
| 2024 | 48 | 53 |
| 2025 | 49 | 35 |
| 2026 | 26 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diffraction optical component, wearable displaying device, and fabrication method thereof15 Sep 2026US 12,736,724 B2ASUSTeK COMPUTER INC.
- Optical imaging18 Aug 2026US 12,711,578 B2Oxford University Innovation Limited
- Beam combining grating with integrated apodizer11 Aug 2026US 12,704,667 B2Raytheon Company
- Patch correction for light steering projector11 Aug 2026US 12,707,031 B2Barco Visual Solutions, Inc.
- Diffraction-based illumination sampling28 Jul 2026US 12,693,155 B2KLA Corporation
- Aperture-Metasurface and Hybrid Refractive-Metasurface Imaging Systems17 Sep 2026US 2026/0282578 A1Metalenz, Inc.
- Line Pattern Projector Incorporating One or More Metasurfaces20 Aug 2026US 2026/0243922 A1Metalenz, Inc.
- Near-eye display systems utilizing an array of projectors20 Aug 2026US 2026/0244027 A1Microsoft Technology Licensing, LLC
- Apparatus for fabricating cover window, method for fabricating cover window, and electronic device including cover window13 Aug 2026US 2026/0235885 A1Samsung Display Co., Ltd.
- Multi-spot ophthalmic laser30 Jul 2026US 2026/0215968 A1Alpharet Pty. Ltd.
Most cited
By later US patents
- Holographic optical devices327US 6,580,529 B1ELOP Electro-Optics Industries Ltd. · 2003
- Quarter-wave film for brightness enhancement of holographic thin taillamp270US 5,745,266 ARaytheon Company · 1998
- Display hologram160US 5,455,693 AHughes Aircraft Company · 1995
- Multiple emitter illuminator engine132US 5,997,150 ATexas Instruments Incorporated · 1999
- Illumination system128US 6,341,876 B12002