C09C 1/56
Treatment of carbon black
Official title: Treatment of carbon black {; Purification}
C09C1/56 (Treatment of carbon black) appears on 702 US grants and 697 published applications in this corpus.
Search patents in C09C- Granted patents
- 702
- Published applications
- 697
- Assignees
- 378
- Inventors
- 1,812
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 11 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 16 | 0 |
| 1999 | 24 | 0 |
| 2000 | 27 | 0 |
| 2001 | 21 | 10 |
| 2002 | 26 | 16 |
| 2003 | 16 | 25 |
| 2004 | 17 | 32 |
| 2005 | 12 | 31 |
| 2006 | 11 | 30 |
| 2007 | 26 | 23 |
| 2008 | 11 | 32 |
| 2009 | 10 | 33 |
| 2010 | 18 | 26 |
| 2011 | 31 | 27 |
| 2012 | 21 | 24 |
| 2013 | 16 | 30 |
| 2014 | 21 | 26 |
| 2015 | 17 | 30 |
| 2016 | 25 | 23 |
| 2017 | 27 | 26 |
| 2018 | 26 | 31 |
| 2019 | 20 | 25 |
| 2020 | 12 | 29 |
| 2021 | 17 | 24 |
| 2022 | 20 | 26 |
| 2023 | 25 | 25 |
| 2024 | 13 | 31 |
| 2025 | 17 | 32 |
| 2026 | 18 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Adduct comprising at least a metal selected from gold, silver and copper and an adduct of a carbon allotrop and a pyrrolic compound25 Aug 2026US 12,715,882 B2
- Carbon black, slurry, and lithium-ion secondary battery4 Aug 2026US 12,700,594 B2Denka Company Limited
- Particulate carbon material producible from renewable raw materials and method for its production30 Jun 2026US 12,668,703 B2Suncoal Industries GmbH
- System and method for preparing carbon black from waste tires by using pyrolysis23 Jun 2026US 12,662,597 B2Ld Carbon Co., Ltd.
- Process for synthesis of carbon beads9 Jun 2026US 12,649,664 B2Millennial Materials and Devices Inc.
- Staged injector to enhance structure of reclaimed carbon blends1 Oct 2026US 2026/0297299 A1Cabot Corporation
- Methods of making carbon coated particles from reclaimed carbon and other particles1 Oct 2026US 2026/0297731 A1Cabot Corporation
- Negative coating composition for all-solid-state battery, method for preparing same, and all-solid-state battery including same1 Oct 2026US 2026/0302231 A1Samsung SDI.Co., Ltd.
- Methods and additives to improve performance of carbon particles in elastomer composites24 Sep 2026US 2026/0286101 A1Monolith Materials, Inc.
- Solid Carbon Black Material, Preparation Thereof and Compositions and Articles Containing the Same10 Sep 2026US 2026/0265533 A1Orion Engineered Carbons IP GmbH & Co. KG
Most cited
By later US patents
- Process for preparing carbon materials with diazonium salts and resultant carbon products257US 5,554,739 ACabot Corporation · 1996
- Ink jet ink formulations containing carbon black products241US 5,571,311 ACabot Corporation · 1996
- Ink compositions containing modified pigment particles217US 5,281,261 AXerox Corporation · 1994
- Ink jet ink formulations containing modified carbon products172US 5,630,868 ACabot Corporation · 1997
- Modified carbon products and inks and coatings containing modified carbon products167US 5,707,432 ACabot Corporation · 1998