C09B 3/18
Preparation from starting materials already containing the perylene nucleus
C09B3/18 (Preparation from starting materials already containing the perylene nucleus) appears on 28 US grants and 22 published applications in this corpus.
Search patents in C09B- Granted patents
- 28
- Published applications
- 22
- Assignees
- 16
- Inventors
- 58
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 7 |
| 2014 | 2 | 2 |
| 2015 | 5 | 2 |
| 2016 | 1 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compound, photosensitive fluorescent resin composition comprising same, color conversion film prepared using same, backlight unit, and display device24 Mar 2026US 12,584,020 B2LG Chem.Ltd.
- Black perylene pigment microparticles, method of producing the same, black pigment composition comprising the same, and method of producing black perylene pigment microparticles having controlled hue and/or chroma5 Dec 2023US 11,834,578 B2M. Technique Co., Ltd.
- Compounds as potential dye molecules4 May 2021US 10,995,217 B2Lleaf Pty Ltd
- Optical element for correcting color blindness25 Aug 2020US 10,752,833 B2Nitto Denko Corporation
- Optical element for correcting color blindness26 Feb 2019US 10,214,685 B2Nitto Denko Corporation
- Near-Infrared (NIR) transparent neutral black perylene solid solutions25 Jan 2024US 2024/0026171 A1Sun Chemical Corporation
- Compound, photosensitive fluorescent resin composition comprising same, color conversion film prepared using same, backlight unit, and display device26 Jan 2023US 2023/0023648 A1LG Chem.Ltd.
- Black perylene pigment microparticles, method of producing the same, black pigment composition comprising the same, and method of producing black perylene pigment microparticles having controlled hue and/or chroma28 Jul 2022US 2022/0235227 A1M. Technique Co., Ltd.
- Compounds as potential dye molecules25 Jun 2020US 2020/0199367 A1Lleaf Pty Ltd
- Optical element for correcting color blindness27 Jun 2019US 2019/0194535 A1Nitto Denko Corporation
Most cited
By later US patents
- Process for the preparation of N,N'-dimethylperylene-3,4,9,10-tetracarboxylic diimide in high-hiding pigment form60US 5,110,931 AHoechst Aktiengesellschaft · 1992
- Perylenetetracarboxylic acid dibenzimidazole sulfoderivatives containing oxo-groups in the perylene core which form part of a para-quinoid system of bonds, lyotropic liquid crystal systems and anisotropic films containing the same, and methods for making the same27US 7,025,900 B2Nitto Denko Corporation · 2006
- Perylene compounds20US 4,618,694 ABASF SE · 1986
- Monoalkali metal salts of perylene-3,4,9,10-tetracarboxylic acid monoanhydride and process for their manufacturing17US 4,501,906 AHoechst Aktiengesellschaft · 1985
- Compound for organic electro-luminescence device and organic electro-luminescence device using the compound16US 6,329,084 B1Toyo Ink Mfg. Co., Ltd. · 2001