C04B 2235/424
Carbon black
C04B2235/424 (Carbon black) appears on 218 US grants and 286 published applications in this corpus.
Search patents in C04B- Granted patents
- 218
- Published applications
- 286
- Assignees
- 191
- Inventors
- 703
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 6 |
| 2003 | 2 | 9 |
| 2004 | 6 | 5 |
| 2005 | 2 | 10 |
| 2006 | 3 | 16 |
| 2007 | 8 | 9 |
| 2008 | 9 | 8 |
| 2009 | 3 | 15 |
| 2010 | 4 | 9 |
| 2011 | 5 | 9 |
| 2012 | 7 | 14 |
| 2013 | 10 | 15 |
| 2014 | 10 | 9 |
| 2015 | 4 | 14 |
| 2016 | 11 | 18 |
| 2017 | 14 | 17 |
| 2018 | 13 | 18 |
| 2019 | 14 | 13 |
| 2020 | 10 | 11 |
| 2021 | 14 | 15 |
| 2022 | 5 | 6 |
| 2023 | 9 | 16 |
| 2024 | 3 | 9 |
| 2025 | 7 | 4 |
| 2026 | 11 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing a SiC ceramic part25 Aug 2026US 12,715,818 B2Jiageng (Jiangsu) Special Materials Co., Ltd.
- Thermal insulation materials suitable for use at high temperatures, and process for making said materials21 Jul 2026US 12,686,643 B2Mersen Scotland Holytown Limited
- Silicon carbide-containing material, precursor composition and preparation processes thereof5 May 2026US 12,617,688 B2The Yellow SiC Holding GmbH
- Thermal insulation material and method for producing thermal insulation material14 Apr 2026US 12,600,681 B2Ibiden Co., Ltd.
- Refractory lining design and separation via destructive hydration7 Apr 2026US 12,595,211 B2HarbisonWalker International, Inc.
- Thermal insulation materials suitable for use at high temperatures, and process for making said materials8 Oct 2026US 2026/0308071 A1Mersen Scotland Holytown Limited
- Porous silicon carbide composite material, electrode for fuel cell, and method for manufacturing porous silicon carbide composite material24 Sep 2026US 2026/0290847 A1DIC Corporation
- Method for Obtaining at Least One Ceramic Component by Joining at Least Two Ceramic SIC Preforms and Ceramic Components Obtained by Said Method20 Aug 2026US 2026/0242299 A1CeramTec GmbH
- Insulation coating film composition for grain-oriented electrical steel sheet, preparation method therefor, grain-oriented electrical steel sheet having an insulation coating film formed on surface thereof by using same, and manufacturing method therefor23 Jul 2026US 2026/0209120 A1Posco
- Refractory material, method for producing same, and use thereof23 Jul 2026US 2026/0209125 A1
Most cited
By later US patents
- Process for preparing carbon materials with diazonium salts and resultant carbon products257US 5,554,739 ACabot Corporation · 1996
- Reaction of carbon black with diazonium salts, resultant carbon black products and their uses157US 5,851,280 ACabot Corporation · 1998
- Aqueous inks and coatings containing modified carbon products156US 5,672,198 ACabot Corporation · 1997
- Composite synthetic materials149US 4,960,643 A1990
- Reaction of carbon black with diazonium salts, resultant carbon black products and their uses123US 6,042,643 ACabot Corporation · 2000