G02B 5/286
Having four or fewer layers
Official title: {having four or fewer layers, e.g. for achieving a colour effect}
G02B5/286 (Having four or fewer layers) appears on 223 US grants and 297 published applications in this corpus.
Search patents in G02B- Granted patents
- 223
- Published applications
- 297
- Assignees
- 179
- Inventors
- 623
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 1 | 4 |
| 2004 | 4 | 6 |
| 2005 | 3 | 5 |
| 2006 | 3 | 2 |
| 2007 | 1 | 5 |
| 2008 | 1 | 7 |
| 2009 | 5 | 11 |
| 2010 | 5 | 10 |
| 2011 | 1 | 11 |
| 2012 | 5 | 8 |
| 2013 | 6 | 10 |
| 2014 | 6 | 13 |
| 2015 | 4 | 16 |
| 2016 | 8 | 9 |
| 2017 | 16 | 14 |
| 2018 | 7 | 13 |
| 2019 | 15 | 13 |
| 2020 | 16 | 23 |
| 2021 | 15 | 27 |
| 2022 | 11 | 21 |
| 2023 | 17 | 22 |
| 2024 | 16 | 24 |
| 2025 | 20 | 14 |
| 2026 | 11 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Three-layered structural color multilayer structures15 Sep 2026US 12,736,728 B2Toyota Jidosha Kabushiki Kaisha
- Watch component, watch, and method for manufacturing watch component8 Sep 2026US 12,730,412 B2Seiko Epson Corporation
- Article including a non-light-emitting variable transmission device and a coating4 Aug 2026US 12,699,215 B2Sage Electrochromics, Inc.
- Offset voltage compensation circuit and isolation amplifier device including the same28 Jul 2026US 12,693,162 B2Lite-On Singapore Pte. Ltd.
- Mask and LED module21 Jul 2026US 12,687,735 B2Shenzhen Time Waying Technology Co., Ltd.
- Wavelength conversion module23 Jul 2026US 2026/0211159 A1Nichia Corporation
- External part comprising a stack of interference layers deposited on a face made of chromium carbide16 Jul 2026US 2026/0200811 A1The Swatch Group Research and Development Ltd
- External part comprising a coating of interference layers deposited on a face made of a material comprising at least 50% by mass of aluminium25 Jun 2026US 2026/0176755 A1The Swatch Group Research and Development Ltd
- External part comprising a stack of protective interference layers18 Jun 2026US 2026/0168097 A1The Swatch Group Research and Development Ltd
- Heat-resistant protective shield23 Apr 2026US 2026/0107994 A1Taroko International Co., Ltd.
Most cited
By later US patents
- Multicolor interference coating187US 5,877,895 ACatalina Coatings, Inc. · 1999
- High chroma multilayer interference platelets152US 5,571,624 AFlex Products, Inc. · 1996
- Glass pane with reflectance reducing coating and combiner of head-up display system124US 5,496,621 ACentral Glass Company, Limited · 1996
- Method for forming a multicolor interference coating123US 6,010,751 ADelta V Technologies, Inc. · 2000
- Optical multilayer structure, optical switching device, and image display109US 6,940,631 B2Sony Corporation · 2005