C09C 1/0051
Comprising a stack of coating layers with alternating low and high refractive
Official title: {comprising a stack of coating layers with alternating low and high refractive indices, wherein the first coating layer on the core surface has the low refractive index}
C09C1/0051 (Comprising a stack of coating layers with alternating low and high refractive) appears on 143 US grants and 173 published applications in this corpus.
Search patents in C09C- Granted patents
- 143
- Published applications
- 173
- Assignees
- 60
- Inventors
- 340
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 3 |
| 2003 | 4 | 14 |
| 2004 | 12 | 11 |
| 2005 | 3 | 6 |
| 2006 | 3 | 7 |
| 2007 | 8 | 6 |
| 2008 | 3 | 5 |
| 2009 | 2 | 2 |
| 2010 | 3 | 6 |
| 2011 | 5 | 5 |
| 2012 | 2 | 1 |
| 2013 | 4 | 8 |
| 2014 | 2 | 2 |
| 2015 | 1 | 3 |
| 2016 | 1 | 6 |
| 2017 | 8 | 12 |
| 2018 | 1 | 9 |
| 2019 | 5 | 14 |
| 2020 | 4 | 9 |
| 2021 | 10 | 11 |
| 2022 | 8 | 9 |
| 2023 | 5 | 4 |
| 2024 | 7 | 5 |
| 2025 | 7 | 8 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Plate-like PVD aluminum pigment with a protective encapsulation and method for manufacturing a plate-like PVD aluminium pigment with a protective encapsulation15 Sep 2026US 12,735,576 B2Eckart GmbH
- Composition including dual cavity color shifting pigments28 Jul 2026US 12,692,397 B2Viavi Solutions Inc.
- Solvochromic effect pigments, method of production and use thereof24 Mar 2026US 12,584,022 B2Eckart GmbH
- Asymmetric pigment17 Feb 2026US 12,552,940 B2Viavi Solutions Inc.
- Pigment including a metal core, organic layer, and an inorganic layer2 Dec 2025US 12,486,404 B2Viavi Solutions Inc.
- Mid-shade red effect pigment8 Oct 2026US 2026/0308384 A1Sun Chemical Corporation
- Effect Pigments with Sparkle20 Aug 2026US 2026/0242609 A1Sun Chemical Corporation
- Radar transparent mixtures of metal effect pigmets with semiconductor effect pigmentsor semiconductor effect pigments with silvery absorbing pearlescent pigments and coating formulations thereof23 Jul 2026US 2026/0209521 A1Eckart America Corporation
- Pigment including a metal core, organic layer, and an inorganic layer11 Jun 2026US 2026/0159694 A1Viavi Solutions Inc.
- Asymmetric pigment4 Jun 2026US 2026/0152639 A1Viavi Solutions Inc.
Most cited
By later US patents
- Article and method for forming thin film flakes and coatings191US 4,434,010 AOptical Coating Laboratory, Inc. · 1984
- Ink incorporating optically variable thin film flakes190US 5,059,245 AFlex Products, Inc. · 1991
- Optically variable thin film flake and collection of the same189US 5,135,812 AFlex Products, Inc. · 1992
- Optically variable multilayer thin film interference stack on flexible insoluble web135US 5,084,351 AFlex Products, Inc. · 1992
- Optically variable printing ink135US 5,171,363 AFlex Products, Inc. · 1992