G03H 2223/12
Amplitude mask
Official title: Amplitude mask, e.g. diaphragm, Louver filter
G03H2223/12 (Amplitude mask) appears on 193 US grants and 210 published applications in this corpus.
Search patents in G03H- Granted patents
- 193
- Published applications
- 210
- Assignees
- 134
- Inventors
- 482
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 6 |
| 2003 | 6 | 5 |
| 2004 | 6 | 6 |
| 2005 | 2 | 5 |
| 2006 | 4 | 9 |
| 2007 | 6 | 10 |
| 2008 | 2 | 11 |
| 2009 | 7 | 11 |
| 2010 | 8 | 8 |
| 2011 | 7 | 9 |
| 2012 | 9 | 8 |
| 2013 | 5 | 7 |
| 2014 | 7 | 2 |
| 2015 | 4 | 3 |
| 2016 | 4 | 3 |
| 2017 | 1 | 6 |
| 2018 | 3 | 10 |
| 2019 | 7 | 12 |
| 2020 | 11 | 9 |
| 2021 | 5 | 8 |
| 2022 | 11 | 14 |
| 2023 | 11 | 16 |
| 2024 | 9 | 21 |
| 2025 | 15 | 4 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for minimizing haze during holographic recording2 Jun 2026US 12,645,182 B2DigiLens Inc.
- Light control film14 Apr 2026US 12,601,858 B2Envisics Ltd
- Holography device7 Apr 2026US 12,596,328 B2Envisics Ltd
- Diffractive optical network for reconstruction of holograms17 Mar 2026US 12,578,679 B2The Regents of the University of California
- Optical measurement system and optical measurement method10 Mar 2026US 12,572,112 B2Otsuka Electronics Co., Ltd.
- Holographic display25 Jun 2026US 2026/0177832 A1Real View Imaging Ltd.
- Method and optical system for reconstructing holographic image using amplitude mask25 Jun 2026US 2026/0177976 A1Electronics and Telecommunications Research Institute
- Optical measurement method and optical measurement system11 Jun 2026US 2026/0160539 A1Otsuka Electronics Co., Ltd.
- Systems, methods, and device architectures for optical applications12 Mar 2026US 2026/0072402 A1Meta Platforms Technologies, LLC
- Display system, spatial filter and method15 Jan 2026US 2026/0016741 A1VividQ Limited
Most cited
By later US patents
- Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns252US 5,396,559 A1995
- Color hologram display and its fabrication process86US 7,710,622 B2Dai Nippon Printing Co.Ltd. · 2010
- Dry film process for altering the wavelength of response of holograms66US 5,182,180 AE. I. Du Pont de Nemours and Company · 1993
- Holographic displays58US 6,760,135 B1Holographic Imaging LLC · 2004
- Diffraction optics diffusing screen laminate for full color on-axis viewing56US 4,960,314 AHughes Aircraft Company · 1990