G03H 2250/44
Colour tuning layer
G03H2250/44 (Colour tuning layer) appears on 47 US grants and 31 published applications in this corpus.
Search patents in G03H- Granted patents
- 47
- Published applications
- 31
- Assignees
- 16
- Inventors
- 92
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 4 |
| 2004 | 4 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 4 |
| 2008 | 0 | 0 |
| 2009 | 4 | 2 |
| 2010 | 1 | 3 |
| 2011 | 3 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Method of forming a security device10 Nov 2022US 2022/0355608 A1De La Rue International Limited
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Most cited
By later US patents
- Information-recorded media and methods for reading the information159US 5,856,048 ADai Nippon Printing Co.Ltd. · 1999
- Hologram recording sheet, holographic optical element using said sheet, and its production process134US 6,127,066 ADai Nippon Printing Co.Ltd. · 2000
- Holographic optical elements having a reflection hologram formed in a photopolymer112US 4,942,102 AE. I. Du Pont de Nemours and Company · 1990
- Hologram recording sheet, holographic optical element using said sheet, and its production process108US 7,132,200 B1Dai Nippon Printing Co.Ltd. · 2006
- Hologram recording sheet holographic optical element using said sheet and its production process105US 6,340,540 B12002