C09C 1/50
Furnace black
Official title: Furnace black {; Preparation thereof (separation or recovery C09C1/487)}
C09C1/50 (Furnace black) appears on 385 US grants and 172 published applications in this corpus.
Search patents in C09C- Granted patents
- 385
- Published applications
- 172
- Assignees
- 92
- Inventors
- 570
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 14 | 0 |
| 1978 | 17 | 0 |
| 1979 | 9 | 0 |
| 1980 | 18 | 0 |
| 1981 | 21 | 0 |
| 1982 | 23 | 0 |
| 1983 | 17 | 0 |
| 1984 | 14 | 0 |
| 1985 | 9 | 0 |
| 1986 | 11 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 18 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 6 |
| 2002 | 12 | 6 |
| 2003 | 3 | 2 |
| 2004 | 3 | 7 |
| 2005 | 2 | 8 |
| 2006 | 2 | 7 |
| 2007 | 3 | 7 |
| 2008 | 4 | 9 |
| 2009 | 2 | 2 |
| 2010 | 9 | 3 |
| 2011 | 2 | 7 |
| 2012 | 2 | 1 |
| 2013 | 3 | 6 |
| 2014 | 7 | 4 |
| 2015 | 4 | 6 |
| 2016 | 4 | 7 |
| 2017 | 4 | 5 |
| 2018 | 4 | 5 |
| 2019 | 2 | 11 |
| 2020 | 7 | 6 |
| 2021 | 8 | 6 |
| 2022 | 3 | 9 |
| 2023 | 6 | 6 |
| 2024 | 8 | 14 |
| 2025 | 4 | 18 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Conductive material dispersion, method for producing the same, and composition for secondary battery electrode, electrode film, secondary battery, and vehicle using conductive material dispersion22 Jul 2025US 12,368,167 B2artience Co., Ltd.
- Method and device for producing hydrogen and pyrolytic carbon from hydrocarbons8 Jul 2025US 12,351,457 B2thyssenkrupp AG
- Carbon black from biomass1 Jul 2025US 12,344,748 B2Norse Biotech AS
- Toner and method of formation using fly ash-rich carbon21 Jan 2025US 12,204,279 B1King Saud University
- Inkjet ink3 Dec 2024US 12,157,827 B2KYOCERA Document Solutions Inc.
- Staged injector to enhance structure of reclaimed carbon blends1 Oct 2026US 2026/0297299 A1Cabot Corporation
- Carbon Black from Particulate Feedstock Materials17 Sep 2026US 2026/0275111 A1Orion Engineered Carbons IP GmbH & Co. KG
- Feedstock blend for sustainable carbon black manufacturing13 Aug 2026US 2026/0234410 A1
- Near-infrared reflective carbon black19 Mar 2026US 2026/0078260 A1Birla Carbon U.S.A., Inc.
- Methods of Producing Carbon Blacks from Low-Yielding Feedstocks and Products Made from Same25 Dec 2025US 2025/0388758 A1Cabot Corporation
Most cited
By later US patents
- Treatment of diesel exhaust gases207US 4,902,487 AJohnson Matthey PLC · 1990
- Low ash carbon blacks70US 5,352,289 ACabot Corporation · 1994
- Ink and coating compositions containing silicon-treated carbon black66US 5,747,562 ACabot Corporation · 1998
- Ink and coating compositions containing silicon-treated carbon black62US 5,749,950 ACabot Corporation · 1998
- Carbon blacks and rubber compositions containing the carbon blacks61US 5,093,407 ACabot Corporation · 1992