G03H 2222/42
Reference beam at recording stage
G03H2222/42 (Reference beam at recording stage) appears on 34 US grants and 39 published applications in this corpus.
Search patents in G03H- Granted patents
- 34
- Published applications
- 39
- Assignees
- 34
- Inventors
- 93
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 3 | 4 |
| 2018 | 4 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 4 |
| 2021 | 1 | 2 |
| 2022 | 3 | 1 |
| 2023 | 0 | 7 |
| 2024 | 1 | 2 |
| 2025 | 4 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Imaging device and method for holographic imaging of samples23 Jun 2026US 12,663,656 B2Imec Vzw
- Optical measurement system and optical measurement method10 Mar 2026US 12,572,112 B2Otsuka Electronics Co., Ltd.
- Dark field digital holographic microscope and associated metrology method3 Mar 2026US 12,566,406 B2ASML Netherlands B. V.
- Method and system for simultaneous recording of superimposed holographic gratings for augmented reality devices (variants)16 Dec 2025US 12,498,669 B2Samsung Electronics Co., Ltd.
- Apparatuses and methods for examining the movement of constituents within tissue cells21 Oct 2025US 12,449,358 B2Purdue Research Foundation
- Dark field digital holographic microscope and associated metrology method2 Jul 2026US 2026/0186446 A1ASML Netherlands B. V.
- Optical measurement system and optical measurement method30 Oct 2025US 2025/0334525 A1Otsuka Electronics Co., Ltd.
- Optical measurement system and optical measurement method8 Feb 2024US 2024/0045375 A1Otsuka Electronics Co., Ltd.
- Apparatuses and methods for examining the movement of constituents within tissue cells11 Jan 2024US 2024/0011903 A1Purdue Research Foundation
- Near-eye display device and wearable device having the same21 Dec 2023US 2023/0408821 A1LINGXI-AR Technology Co., Ltd.
Most cited
By later US patents
- Real image holographic stereograms78US 4,834,476 AMassachusetts Institute of Technology · 1989
- Heads-up and heads-down displays employing holographic stereograms12US 5,663,815 APolaroid Corporation · 1997
- Heads-up and heads-down displays employing holographic stereograms10US 5,473,447 APolaroid Corporation · 1995
- Heads-up and heads-down displays employing holographic stereograms7US 5,574,579 APolaroid Corporation · 1996
- Generation method for complex amplitude in-line hologram and image recording device using said method6US 8,416,669 B2Hyogo Prefectural Government · 2013