G03H 1/181
Pre-exposure processing
Official title: {Pre-exposure processing, e.g. hypersensitisation}
G03H1/181 (Pre-exposure processing) appears on 72 US grants and 71 published applications in this corpus.
Search patents in G03H- Granted patents
- 72
- Published applications
- 71
- Assignees
- 52
- Inventors
- 187
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 6 |
| 2003 | 3 | 2 |
| 2004 | 6 | 4 |
| 2005 | 1 | 1 |
| 2006 | 3 | 7 |
| 2007 | 1 | 4 |
| 2008 | 1 | 5 |
| 2009 | 3 | 5 |
| 2010 | 4 | 1 |
| 2011 | 3 | 2 |
| 2012 | 1 | 4 |
| 2013 | 4 | 0 |
| 2014 | 2 | 4 |
| 2015 | 4 | 4 |
| 2016 | 0 | 0 |
| 2017 | 3 | 2 |
| 2018 | 0 | 6 |
| 2019 | 0 | 6 |
| 2020 | 2 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chemical diffusion treated volume holograms and methods for making the same2 Sep 2025US 12,405,409 B2Meta Platforms Technologies, LLC
- Optical element, method of producing optical element, and display device11 Jul 2023US 11,698,507 B2Seiko Epson Corporation
- Apodization of refractive index profile in volume gratings21 Feb 2023US 11,585,967 B2Meta Platforms Technologies, LLC
- Systems, devices, and methods for aperture-free hologram recording23 Aug 2022US 11,422,505 B2Google Inc.
- Systems, devices, and methods for aperture-free hologram recording9 Aug 2022US 11,409,238 B2Google Inc.
- Replicating device for copying holograms into liquid photopolymers19 Feb 2026US 2026/0050238 A1
- Apodization of refractive index profile in volume gratings18 May 2023US 2023/0152500 A1Meta Platforms Technologies, LLC
- Chemical diffusion treated volume holograms and methods for making the same19 May 2022US 2022/0155503 A1Facebook Technologies, LLC
- Apodization of refractive index profile in volume gratings21 Apr 2022US 2022/0120946 A1Facebook Technologies, LLC
- Optical element, method of producing optical element, and display device4 Mar 2021US 2021/0063671 A1Seiko Epson Corporation
Most cited
By later US patents
- System and method for replicating volume holograms93US 6,730,442 B1Science Applications International Corporation · 2004
- Color hologram display and its fabrication process86US 7,710,622 B2Dai Nippon Printing Co.Ltd. · 2010
- Process and composition for rapid mass production of holographic recording article58US 6,743,552 B2InPhase Technologies, Inc. · 2004
- Holographic sensors and their production53US 6,689,316 B1Cambridge University Technical Services Limited · 2004
- Method for enhancing the utility of a photopolymer recording media for holographic data recording51US 5,529,861 ATamarack Storage Devices · 1996