C01P 2006/62
L*
Official title: L* (lightness axis)
C01P2006/62 (L*) appears on 586 US grants and 641 published applications in this corpus.
Search patents in C01P- Granted patents
- 586
- Published applications
- 641
- Assignees
- 317
- Inventors
- 1,508
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 15 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 13 | 0 |
| 1997 | 18 | 0 |
| 1998 | 20 | 0 |
| 1999 | 10 | 0 |
| 2000 | 21 | 0 |
| 2001 | 20 | 5 |
| 2002 | 14 | 15 |
| 2003 | 27 | 26 |
| 2004 | 12 | 13 |
| 2005 | 9 | 27 |
| 2006 | 13 | 30 |
| 2007 | 18 | 18 |
| 2008 | 13 | 42 |
| 2009 | 8 | 25 |
| 2010 | 19 | 34 |
| 2011 | 17 | 26 |
| 2012 | 22 | 32 |
| 2013 | 22 | 26 |
| 2014 | 17 | 25 |
| 2015 | 24 | 27 |
| 2016 | 24 | 29 |
| 2017 | 27 | 20 |
| 2018 | 14 | 21 |
| 2019 | 19 | 26 |
| 2020 | 12 | 29 |
| 2021 | 24 | 26 |
| 2022 | 22 | 31 |
| 2023 | 15 | 22 |
| 2024 | 6 | 28 |
| 2025 | 12 | 20 |
| 2026 | 13 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for producing carbon from heat treated lignin1 Sep 2026US 12,722,975 B2Stora Enso OYJ
- Composition including dual cavity color shifting pigments28 Jul 2026US 12,692,397 B2Viavi Solutions Inc.
- Use of an additive in the production of copper(II) hydroxide phosphate14 Jul 2026US 12,679,731 B2Chemische Fabrik Budenheim KG
- Process for producing precipitated calcium carbonate in the presence of natural ground calcium carbonate19 May 2026US 12,630,438 B2Omya International AG
- Silica, paint and silica manufacturing method5 May 2026US 12,617,949 B2Tokuyama Corporation
- Mid-shade red effect pigment8 Oct 2026US 2026/0308384 A1Sun Chemical Corporation
- Complex tungsten oxide particles, near-infrared ray absorbing particle dispersion liquid, and near-infrared ray absorbing particle dispersion product20 Aug 2026US 2026/0242239 A1Sumitomo Metal Mining Co., Ltd.
- Fast Dispersing Pigment Brown 2920 Aug 2026US 2026/0242607 A1Sun Chemical Corporation
- Effect Pigments with Sparkle20 Aug 2026US 2026/0242609 A1Sun Chemical Corporation
- Silica, Paint And Silica Manufacturing Method13 Aug 2026US 2026/0234422 A1Tokuyama Corporation
Most cited
By later US patents
- Modified carbon products and inks and coatings containing modified carbon products167US 5,707,432 ACabot Corporation · 1998
- Modified colored pigments and ink jet inks, inks, and coatings containing modified colored pigments161US 5,922,118 ACabot Corporation · 1999
- Compositions of modified carbon products and amphiphilic ions and methods of using the same142US 5,698,016 ACabot Corporation · 1997
- Color shifting thin film pigments140US 6,157,489 AFlex Products, Inc. · 2000
- Luster pigments based on multiply coated plateletlike metalic substrates129US 5,364,467 ABASF SE · 1994