G03H 2001/0497
Dot matrix holograms
Official title: {Dot matrix holograms}
G03H2001/0497 (Dot matrix holograms) appears on 82 US grants and 74 published applications in this corpus.
Search patents in G03H- Granted patents
- 82
- Published applications
- 74
- Assignees
- 53
- Inventors
- 166
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 4 |
| 2004 | 5 | 7 |
| 2005 | 3 | 5 |
| 2006 | 3 | 3 |
| 2007 | 2 | 6 |
| 2008 | 3 | 6 |
| 2009 | 2 | 3 |
| 2010 | 3 | 5 |
| 2011 | 3 | 4 |
| 2012 | 2 | 5 |
| 2013 | 1 | 1 |
| 2014 | 4 | 4 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 3 | 4 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
| 2020 | 3 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 3 |
| 2023 | 1 | 2 |
| 2024 | 2 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical identifier and printed matter4 Nov 2025US 12,461,488 B2Toppan Inc.
- Static-image augmented privacy display, mode-switchable privacy display system, and method27 May 2025US 12,313,872 B2Leia Inc.
- Optical device with ordered scatterer arrays for secure identity and a method of producing the same5 Nov 2024US 12,134,280 B2Kaunas University of Technology
- Authentication medium, authentication medium manufacturing method, authentication medium reading method, and authentication medium verification method6 Feb 2024US 11,893,432 B2Toppan Printing Co., Ltd.
- Optically variable film, apparatus and method for making the same23 May 2023US 11,656,396 B2Illinois Tool Works Inc.
- Hologram color designation system and hologram color designation method based on dithering mask14 Dec 2023US 2023/0400810 A1Ulsan National Institute of Science and Technology (UNIST)
- Optically variable film, apparatus and method for making the same5 Oct 2023US 2023/0314687 A1Illinois Tool Works Inc.
- Static-image augmented privacy display, mode-switchable privacy display system, and method29 Dec 2022US 2022/0413203 A1Leia Inc.
- Optical identifier and printed matter1 Dec 2022US 2022/0382214 A1Toppan Inc.
- Optical device with ordered scatterer arrays for secure identity and a method of producing the same6 Oct 2022US 2022/0314682 A1Kaunas University of Technology
Most cited
By later US patents
- Anticounterfeiting method and device utilizing holograms and pseudorandom dot patterns252US 5,396,559 A1995
- Holographic diffraction grating patterns and methods for creating the same142US 5,291,317 AApplied Holographics Corporation · 1994
- Document with an optical diffraction safety element103US 4,984,824 ALGZ Landis & Gyr Zug AG · 1991
- Display having diffraction grating pattern100US 5,301,062 AToppan Printing Co., Ltd. · 1994
- Method for producing a display with a diffraction grating pattern and a display produced by the method90US 5,058,992 AToppan Printing Co., Ltd. · 1991