G03H 2223/13
Phase mask
G03H2223/13 (Phase mask) appears on 80 US grants and 97 published applications in this corpus.
Search patents in G03H- Granted patents
- 80
- Published applications
- 97
- Assignees
- 66
- Inventors
- 220
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 8 |
| 2008 | 1 | 5 |
| 2009 | 0 | 9 |
| 2010 | 6 | 7 |
| 2011 | 5 | 4 |
| 2012 | 7 | 3 |
| 2013 | 3 | 3 |
| 2014 | 4 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 6 |
| 2018 | 2 | 5 |
| 2019 | 3 | 6 |
| 2020 | 6 | 5 |
| 2021 | 2 | 4 |
| 2022 | 4 | 6 |
| 2023 | 8 | 8 |
| 2024 | 6 | 6 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diffractive optical network for reconstruction of holograms17 Mar 2026US 12,578,679 B2The Regents of the University of California
- Rotating diffuser for improved image quality10 Feb 2026US 12,547,000 B1Envisics Ltd
- Achromatic holographic phase masks2 Sep 2025US 12,405,482 B2Ipg Photonics Corporation
- Totagraphy: coherent diffractive/digital information reconstruction by iterative phase recovery using a second camera imaging the input plane13 May 2025US 12,298,715 B2Wavefront Analysis Systems LLC
- Phase plate and fabrication method for color-separated laser backlight in display systems22 Oct 2024US 12,124,070 B2Meta Platforms Technologies, LLC
- Systems, methods, and device architectures for optical applications12 Mar 2026US 2026/0072402 A1Meta Platforms Technologies, LLC
- Achromatic holographic phase marks18 Dec 2025US 2025/0383554 A1Ipg Photonics Corporation
- Complex light modulator, holographic display device, and see-through display device12 Dec 2024US 2024/0411181 A1Korea University Research and Business Foundation, Sejong Campus
- Polarization gratings having large diffraction angle, high efficiency, high degree of circular polarization output15 Aug 2024US 2024/0272339 A1Meta Platforms Technologies, LLC
- Holographic projector and method18 Jul 2024US 2024/0241478 A1Envisics Ltd
Most cited
By later US patents
- Methods of forming multiple phase light modulators371US 5,312,513 ATexas Instruments Incorporated · 1994
- Multiple phase light modulation using binary addressing244US 5,606,441 ATexas Instruments Incorporated · 1997
- Optical device and optical machining system using the optical device64US 5,589,955 ASeiko Epson Corporation · 1996
- Optical correlator using light phase modulation and two reflective spatial light modulators60US 5,523,881 ATexas Instruments Incorporated · 1996
- Liquid crystal modulator including a diffuser with plural phase shifting regions56US 5,225,920 AMatsushita Electric Industrial Co., Ltd. · 1993