C10L 1/003
Marking
Official title: {Marking, e.g. coloration by addition of pigments}
C10L1/003 (Marking) appears on 185 US grants and 143 published applications in this corpus.
Search patents in C10L- Granted patents
- 185
- Published applications
- 143
- Assignees
- 81
- Inventors
- 276
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 1 |
| 2003 | 2 | 3 |
| 2004 | 2 | 8 |
| 2005 | 2 | 3 |
| 2006 | 0 | 4 |
| 2007 | 3 | 7 |
| 2008 | 1 | 8 |
| 2009 | 3 | 2 |
| 2010 | 6 | 2 |
| 2011 | 2 | 7 |
| 2012 | 4 | 2 |
| 2013 | 6 | 9 |
| 2014 | 1 | 16 |
| 2015 | 11 | 13 |
| 2016 | 15 | 10 |
| 2017 | 12 | 10 |
| 2018 | 7 | 11 |
| 2019 | 7 | 6 |
| 2020 | 9 | 4 |
| 2021 | 3 | 6 |
| 2022 | 6 | 2 |
| 2023 | 4 | 6 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes17 Mar 2026US 12,577,484 B2United Color Manufacturing, Inc.
- Method for determining authenticity and adulteration of marked petroleum hydrocarbons30 Dec 2025US 12,510,529 B2Sicpa Holding SA
- Methods of identifying a hydrocarbon fuel17 Dec 2024US 12,169,192 B2Afton Chemical Corporation
- Method of marking a petroleum hydrocarbon9 Jul 2024US 12,031,098 B2Sicpa Holding SA
- Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes18 Jul 2023US 11,702,606 B2United Color Manufacturing, Inc.
- Method and apparatus for marking a liquid hydrocarbon in a reservoir30 Apr 2026US 2026/0117136 A1Sicpa Holding SA
- Method of marking a petroleum hydrocarbon3 Oct 2024US 2024/0327736 A1Sicpa Holding SA
- Compounds for marking liquids20 Jun 2024US 2024/0199964 A1Kuantag Nanoteknolojiler Gelistirme Ve Uretim A.S.
- Hydrophobic fluorescent carbon quantum dot for marker application in hydrocarbon liquids and process of preparation thereof9 Nov 2023US 2023/0363193 A1Indian Oil Corporation Limited
- Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyes12 Oct 2023US 2023/0326968 A1United Color Manufacturing, Inc.
Most cited
By later US patents
- Method for tagging petroleum products91US 5,525,516 AEastman Chemical Company · 1996
- Anilines as markers for mineral oils59US 5,627,077 ABASF SE · 1997
- Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids40US 5,804,447 ABASF SE · 1998
- Method for marking liquids with at least two marker substances and method for detecting them40US 6,312,958 B1BASF SE · 2001
- Marker for petroleum fuels39US 4,209,302 AMorton-Norwich Products, Inc. · 1980