C09C 1/0021
Comprising a core coated with only one layer having a high or
Official title: {comprising a core coated with only one layer having a high or low refractive index}
C09C1/0021 (Comprising a core coated with only one layer having a high or) appears on 361 US grants and 340 published applications in this corpus.
Search patents in C09C- Granted patents
- 361
- Published applications
- 340
- Assignees
- 119
- Inventors
- 662
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 3 |
| 2002 | 11 | 9 |
| 2003 | 17 | 15 |
| 2004 | 17 | 16 |
| 2005 | 6 | 21 |
| 2006 | 4 | 11 |
| 2007 | 18 | 17 |
| 2008 | 10 | 23 |
| 2009 | 5 | 15 |
| 2010 | 7 | 22 |
| 2011 | 7 | 28 |
| 2012 | 13 | 12 |
| 2013 | 11 | 7 |
| 2014 | 8 | 10 |
| 2015 | 13 | 12 |
| 2016 | 4 | 14 |
| 2017 | 15 | 11 |
| 2018 | 9 | 14 |
| 2019 | 12 | 16 |
| 2020 | 10 | 17 |
| 2021 | 8 | 10 |
| 2022 | 14 | 10 |
| 2023 | 7 | 6 |
| 2024 | 11 | 13 |
| 2025 | 4 | 4 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Encapsulation of palette flakes with nanostructured copper oxide as LiDAR reflective black pigments4 Aug 2026US 12,698,398 B2Toyota Jidosha Kabushiki Kaisha
- Production of pigments having a defined size and shape21 Apr 2026US 12,606,708 B2Giesecke+Devrient Currency Technology GmbH
- Lamellar particles and methods of manufacture14 Apr 2026US 12,601,862 B2Viavi Solutions Inc.
- Coated pigment24 Feb 2026US 12,559,630 B2Toyo Aluminium Kabushiki Kaisha
- Pigment mixture20 Jan 2026US 12,527,726 B2Susonity Commercial GmbH
- Effect Pigments with Sparkle20 Aug 2026US 2026/0242609 A1Sun Chemical Corporation
- Zinc sulfide interference pigments, synthesis method and cosmetic composition16 Jul 2026US 2026/0199195 A1
- Zinc sulfide interference pigments, synthesis method and cosmetic composition16 Jul 2026US 2026/0201169 A1
- Interference pigments19 Feb 2026US 2026/0049218 A1Merck Patent GmbH
- Al2o3 flakes12 Jun 2025US 2025/0188293 A1Merck Patent GmbH
Most cited
By later US patents
- Bright metal flake based pigments131US 6,150,022 AFlex Products, Inc. · 2000
- Platelet-shaped titanium dioxide pigment112US 5,858,078 AMerck Patent GmbH · 1999
- Nacreous pigments97US 4,867,793 AMerck Patent GmbH · 1989
- Bright metal flake94US 6,013,370 AFlex Products, Inc. · 2000
- Metal oxide coated aluminum pigments81US 4,978,394 ABASF SE · 1990