C09K 11/00
Luminescent materials
Official title: Luminescent materials, e.g. electroluminescent or chemiluminescent
C09K11/00 (Luminescent materials) appears on 17,735 US grants and 23,749 published applications in this corpus.
Search patents in C09K- Granted patents
- 17,735
- Published applications
- 23,749
- Assignees
- 3,546
- Inventors
- 25,175
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 56 | 0 |
| 1977 | 59 | 0 |
| 1978 | 72 | 0 |
| 1979 | 37 | 0 |
| 1980 | 51 | 0 |
| 1981 | 49 | 0 |
| 1982 | 37 | 0 |
| 1983 | 31 | 0 |
| 1984 | 42 | 0 |
| 1985 | 47 | 0 |
| 1986 | 43 | 0 |
| 1987 | 56 | 0 |
| 1988 | 59 | 0 |
| 1989 | 69 | 0 |
| 1990 | 82 | 0 |
| 1991 | 94 | 0 |
| 1992 | 121 | 0 |
| 1993 | 78 | 0 |
| 1994 | 98 | 0 |
| 1995 | 107 | 0 |
| 1996 | 114 | 0 |
| 1997 | 120 | 0 |
| 1998 | 149 | 0 |
| 1999 | 165 | 0 |
| 2000 | 132 | 0 |
| 2001 | 161 | 75 |
| 2002 | 188 | 253 |
| 2003 | 232 | 365 |
| 2004 | 264 | 534 |
| 2005 | 214 | 665 |
| 2006 | 323 | 697 |
| 2007 | 361 | 743 |
| 2008 | 299 | 688 |
| 2009 | 351 | 780 |
| 2010 | 487 | 837 |
| 2011 | 538 | 796 |
| 2012 | 558 | 875 |
| 2013 | 630 | 906 |
| 2014 | 678 | 850 |
| 2015 | 787 | 994 |
| 2016 | 743 | 1127 |
| 2017 | 841 | 1253 |
| 2018 | 937 | 1251 |
| 2019 | 978 | 1188 |
| 2020 | 948 | 1277 |
| 2021 | 880 | 1347 |
| 2022 | 919 | 1349 |
| 2023 | 949 | 1491 |
| 2024 | 967 | 1542 |
| 2025 | 896 | 1112 |
| 2026 | 638 | 754 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09K 11/06Containing organic luminescent materials9,613
- C09K 11/08Containing inorganic luminescent materials7,898
- C09K 11/02Use of particular materials as binders, particle coatings or suspension media therefor4,468
- C09K 11/04Containing natural or artificial radioactive elements or unspecified radioactive elements35
- C09K 11/01Recovery of luminescent materials34
Recent patents
- Aromatic amine derivative, and organic electroluminescent element using same6 Oct 2026US 12,753,145 B2Idemitsu Kosan Co., Ltd.
- Preparation method and chiral sieving application of novel 12-crown-4 covalent organic frameworks6 Oct 2026US 12,753,169 B2Chongqing University of Arts and Sciences
- Organic molecules for optoelectronic devices6 Oct 2026US 12,753,192 B2Samsung Display Co., Ltd.
- Organic electroluminescent element and electronic device6 Oct 2026US 12,753,341 B2Idemitsu Kosan Co., Ltd.
- Perovskite-organic chromophore based X-ray imagining scintillator6 Oct 2026US 12,755,859 B2King Abdullah University of Science and Technology
- Quantum dot-containing composition, wavelength conversion member, and method for manufacturing quantum dot-containing composition8 Oct 2026US 2026/0308445 A1Shin-Etsu Chemical Co., Ltd.
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0308446 A1Universal Display Corporation
- Wavelength conversion sheet, backlight, and liquid crystal display device8 Oct 2026US 2026/0308447 A1Dai Nippon Printing Co.Ltd.
- Composition exhibiting narrow photoluminescence line width8 Oct 2026US 2026/0308448 A1
- Phosphor, light emitting device, lighting device, image display device, and indicator lamp for vehicles8 Oct 2026US 2026/0314126 A1Mitsubishi Chemical Corporation
Most cited
By later US patents
- Electroluminescent devices2,432US 5,247,190 ACambridge Capital Management Limited · 1993
- Multicolor organic light emitting devices2,173US 5,707,745 AThe Trustees of Princeton University · 1998
- OLEDs doped with phosphorescent compounds1,989US 6,303,238 B1The Trustees of Princeton University · 2001
- Transparent contacts for organic devices1,986US 5,703,436 AThe Trustees of Princeton University · 1997
- Complexes with tridentate ligands1,471US 7,279,704 B2Universal Display Corporation · 2007