C09C
Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting
Official title: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS}
C09C (Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting) appears on 7,728 US grants and 7,483 published applications in this corpus.
Search patents in C09C- Granted patents
- 7,728
- Published applications
- 7,483
- Assignees
- 2,728
- Inventors
- 16,323
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 126 | 0 |
| 1977 | 103 | 0 |
| 1978 | 114 | 0 |
| 1979 | 92 | 0 |
| 1980 | 94 | 0 |
| 1981 | 86 | 0 |
| 1982 | 76 | 0 |
| 1983 | 75 | 0 |
| 1984 | 81 | 0 |
| 1985 | 57 | 0 |
| 1986 | 66 | 0 |
| 1987 | 60 | 0 |
| 1988 | 73 | 0 |
| 1989 | 106 | 0 |
| 1990 | 100 | 0 |
| 1991 | 124 | 0 |
| 1992 | 115 | 0 |
| 1993 | 134 | 0 |
| 1994 | 111 | 0 |
| 1995 | 107 | 0 |
| 1996 | 111 | 0 |
| 1997 | 123 | 0 |
| 1998 | 158 | 0 |
| 1999 | 153 | 0 |
| 2000 | 185 | 0 |
| 2001 | 165 | 54 |
| 2002 | 159 | 154 |
| 2003 | 186 | 293 |
| 2004 | 180 | 297 |
| 2005 | 112 | 296 |
| 2006 | 135 | 346 |
| 2007 | 184 | 308 |
| 2008 | 147 | 384 |
| 2009 | 145 | 320 |
| 2010 | 197 | 444 |
| 2011 | 223 | 343 |
| 2012 | 231 | 325 |
| 2013 | 201 | 288 |
| 2014 | 258 | 296 |
| 2015 | 255 | 337 |
| 2016 | 253 | 287 |
| 2017 | 261 | 352 |
| 2018 | 244 | 303 |
| 2019 | 252 | 270 |
| 2020 | 229 | 296 |
| 2021 | 215 | 245 |
| 2022 | 198 | 301 |
| 2023 | 169 | 273 |
| 2024 | 184 | 276 |
| 2025 | 184 | 226 |
| 2026 | 131 | 169 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- C09C 1/00Treatment of specific inorganic materials other than fibrous fillers7,243
- C09C 3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance2,387
- C09C 2200/00Compositional and structural details of pigments exhibiting interference coloursIndexing code692
- C09C 2220/00Methods of preparing the interference pigmentsIndexing code395
- C09C 2210/00Special effects or uses of interference pigmentsIndexing code118
Recent patents
- Boron nitride particles, resin composition, and method for producing resin composition6 Oct 2026US 12,753,075 B2Denka Company Limited
- Modified zinc oxide nanoparticles, method for modifying thereof, and quantum dot light-emitting diode6 Oct 2026US 12,757,630 B2Tcl Technology Group Corporation
- Image sensor with in-pixel background subtraction and motion detection29 Sep 2026US 12,747,338 B2OmniVision Technologies, Inc.
- Method of producing organic-inorganic hybrid infrared absorbing particles and organic-inorganic hybrid infrared absorbing particles29 Sep 2026US 12,747,357 B2Sumitomo Metal Mining Co., Ltd.
- Method and system for multicolor photonic pigments from magneticially assembled nanorod arrays29 Sep 2026US 12,748,324 B2The Regents of the University of California
- Mid-shade red effect pigment8 Oct 2026US 2026/0308384 A1Sun Chemical Corporation
- Carbon-based nanomaterial composition and methods of forming the same from a gas mixture that includes acetylene gas8 Oct 2026US 2026/0308385 A1Nabors Energy Transition Solutions LLC
- Method and Apparatus for Producing Core-Shell Calcium Hydroxide-Calcium Carbonate Particles8 Oct 2026US 2026/0308386 A1Biosenta Inc.
- Multi-jet fusion printing of porous structures8 Oct 2026US 2026/0308398 A1Nanyang Technological University
- Dispersions containing graphenic carbon nanoparticles and dispersant resins1 Oct 2026US 2026/0296894 A1PPG Industries Ohio, Inc.
Most cited
By later US patents
- Electrophoretic particles, and processes for the production thereof510US 7,002,728 B2E Ink Corporation · 2006
- High power ultrasonic reactor for sonochemical applications392US 7,157,058 B2Nano-Size Ltd. · 2007
- Electrophoretic particles and processes for the production thereof363US 6,822,782 B2E Ink Corporation · 2004
- Metal nanoshells299US 6,344,272 B12002
- Process for preparing carbon materials with diazonium salts and resultant carbon products257US 5,554,739 ACabot Corporation · 1996