G03H 2260/52
Photochromic reactivity wherein light induces a reversible transformation between two states having
Official title: Photochromic reactivity wherein light induces a reversible transformation between two states having different absorption spectra
G03H2260/52 (Photochromic reactivity wherein light induces a reversible transformation between two states having) appears on 17 US grants and 30 published applications in this corpus.
Search patents in G03H- Granted patents
- 17
- Published applications
- 30
- Assignees
- 19
- Inventors
- 77
- Latest grant
- 23 May 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 4 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 4 | 3 |
| 2014 | 2 | 3 |
| 2015 | 1 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Security document and/or document of value containing a visually changeable window with a hologram23 May 2017US 9,658,595 B2Covestro Deutschland AG
- Holographic imaging23 Aug 2016US 9,423,770 B2Empire Technology Development LLC
- Holographic image generation and reconstruction10 May 2016US 9,335,737 B2Empire Technology Development LLC
- Holographic image reproduction mechanism using ultraviolet light28 Apr 2015US 9,019,584 B2Empire Technology Development LLC
- Method of making holographic storage medium20 May 2014US 8,728,685 B2SABIC Innovative Plastics IP B. V.
- System and method for generating holographic optical images in curable material26 Jun 2025US 2025/0208566 A1
- Holographic image generation and reconstruction15 Sep 2016US 2016/0266542 A1Empire Technology Development LLC
- Holographic image generation and reconstruction21 Jul 2016US 2016/0209807 A1Empire Technology Development LLC
- Security document and/or document of value containing a visually changeable window with a hologram6 Aug 2015US 2015/0220057 A1Bayer MaterialScience AG
- Holographic image generation and reconstruction26 Mar 2015US 2015/0085069 A1Empire Technology Development LLC
Most cited
By later US patents
- Biopolymer-based optical element93US 6,284,418 B1Cambridge Scientific, Inc. · 2001
- Polymeric photo-chromic composition21US 5,936,878 AOMD Devices LLC · 1999
- Photochromic and electrochromic compounds and methods of synthesizing and using same14US 7,777,055 B2Switch Materials, Inc. · 2010
- Photochromic lithium niobate and method for preparing same10US 3,933,504 ARCA Corporation · 1976
- Process for improving the signal-to-noise ratio in holography using bacteriorhodopsin-based recording media7US 5,223,355 AConsortium fur Elektrochemische Industrie GmbH · 1993