C10L 1/1883
Polycarboxylic acid
Official title: {polycarboxylic acid}
C10L1/1883 (Polycarboxylic acid) appears on 271 US grants and 198 published applications in this corpus.
Search patents in C10L- Granted patents
- 271
- Published applications
- 198
- Assignees
- 101
- Inventors
- 505
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 10 | 0 |
| 1995 | 4 | 0 |
| 1996 | 15 | 0 |
| 1997 | 12 | 0 |
| 1998 | 14 | 0 |
| 1999 | 18 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 1 |
| 2002 | 4 | 3 |
| 2003 | 6 | 9 |
| 2004 | 5 | 16 |
| 2005 | 3 | 11 |
| 2006 | 2 | 8 |
| 2007 | 5 | 7 |
| 2008 | 5 | 15 |
| 2009 | 3 | 9 |
| 2010 | 4 | 7 |
| 2011 | 5 | 8 |
| 2012 | 3 | 12 |
| 2013 | 3 | 10 |
| 2014 | 12 | 9 |
| 2015 | 4 | 2 |
| 2016 | 8 | 6 |
| 2017 | 5 | 16 |
| 2018 | 8 | 8 |
| 2019 | 10 | 11 |
| 2020 | 6 | 8 |
| 2021 | 8 | 6 |
| 2022 | 2 | 5 |
| 2023 | 4 | 2 |
| 2024 | 5 | 5 |
| 2025 | 2 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for reduction of asphaltenes from marine fuels17 Mar 2026US 12,577,489 B2BASF SE
- Compositions and methods and uses relating thereto25 Nov 2025US 12,480,062 B2Innospec Limited
- High-energy-density slurry fuel, preparation method, and application4 Nov 2025US 12,460,144 B2Hubei Institute of Aerospace Chemical Technology
- Fuel additive compositions for gasoline direct injection engines1 Oct 2024US 12,104,132 B2The Lubrizol Corporation
- Mixtures for improving or boosting the separation of water from fuels17 Sep 2024US 12,091,618 B2BASF SE
- Diesel fuel composition and method for reducing diesel fuel filter blocking tendency from biodiesel contaminants3 Sep 2026US 2026/0258313 A1Bl Technologies, Inc.
- Use and method for reducing deposits in a diesel engine19 Feb 2026US 2026/0049257 A1Innospec Manufacturing Park
- Multi-functional fuel additive to provide friction reduction and corrosion protection2 Oct 2025US 2025/0304871 A1Afton Chemical Corporation
- Process for reduction of asphaltenes from marine fuels24 Jul 2025US 2025/0236804 A1BASF SE
- High-energy-density slurry fuel, preparation method, and application31 Oct 2024US 2024/0360374 A1Hubei Institute of Aerospace Chemical Technology
Most cited
By later US patents
- Methods for reducing harmful emissions from a diesel engine61US 6,003,303 AClean Diesel Technologies, Inc. · 1999
- Fuel compositions59US 5,697,988 AEthyl Corporation · 1997
- Operation of diesel engines with reduced particulate emission by utilization of platinum group metal fuel additive and pass-through catalytic oxidizer57US 5,501,714 APlatinum Plus, Inc. · 1996
- Reduction of nitrogen oxides emissions from vehicular diesel engines56US 5,584,894 APlatinum Plus, Inc. · 1996
- Enhanced lubricity diesel fuel emulsions for reduction of nitrogen oxides55US 5,743,922 ANalco Fuel Tech · 1998