C09C 1/00
Treatment of specific inorganic materials other than fibrous fillers
Official title: Treatment of specific inorganic materials other than fibrous fillers (tenebrescent materials C09K9/00; luminescent materials C09K11/00); Preparation of carbon black
C09C1/00 (Treatment of specific inorganic materials other than fibrous fillers) appears on 7,243 US grants and 7,099 published applications in this corpus.
Search patents in C09C- Granted patents
- 7,243
- Published applications
- 7,099
- Assignees
- 2,557
- Inventors
- 15,260
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 109 | 0 |
| 1977 | 94 | 0 |
| 1978 | 102 | 0 |
| 1979 | 82 | 0 |
| 1980 | 84 | 0 |
| 1981 | 77 | 0 |
| 1982 | 67 | 0 |
| 1983 | 68 | 0 |
| 1984 | 77 | 0 |
| 1985 | 51 | 0 |
| 1986 | 55 | 0 |
| 1987 | 55 | 0 |
| 1988 | 65 | 0 |
| 1989 | 92 | 0 |
| 1990 | 96 | 0 |
| 1991 | 120 | 0 |
| 1992 | 110 | 0 |
| 1993 | 127 | 0 |
| 1994 | 101 | 0 |
| 1995 | 98 | 0 |
| 1996 | 108 | 0 |
| 1997 | 118 | 0 |
| 1998 | 148 | 0 |
| 1999 | 139 | 0 |
| 2000 | 169 | 0 |
| 2001 | 151 | 50 |
| 2002 | 148 | 144 |
| 2003 | 176 | 278 |
| 2004 | 172 | 282 |
| 2005 | 103 | 275 |
| 2006 | 129 | 332 |
| 2007 | 174 | 291 |
| 2008 | 134 | 363 |
| 2009 | 140 | 307 |
| 2010 | 189 | 426 |
| 2011 | 213 | 338 |
| 2012 | 220 | 311 |
| 2013 | 194 | 273 |
| 2014 | 248 | 286 |
| 2015 | 243 | 322 |
| 2016 | 241 | 269 |
| 2017 | 250 | 341 |
| 2018 | 230 | 284 |
| 2019 | 240 | 256 |
| 2020 | 219 | 275 |
| 2021 | 204 | 237 |
| 2022 | 187 | 284 |
| 2023 | 160 | 250 |
| 2024 | 174 | 257 |
| 2025 | 170 | 211 |
| 2026 | 122 | 157 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09C 1/44Carbon1,493
- C09C 1/28Compounds of silicon1,368
- C09C 1/36Compounds of titanium1,178
- C09C 1/40Compounds of aluminium1,147
- C09C 1/02Compounds of alkaline earth metals or magnesium808
- C09C 1/0015Pigments exhibiting interference colours806
- C09C 1/22Compounds of iron592
- C09C 1/62Metallic pigments or fillers528
All 20 subgroupsShow fewer
- C09C 1/0081Composite particulate pigments or fillers, i.e. containing at least two solid phases462
- C09C 1/04Compounds of zinc329
- C09C 1/0078Pigments consisting of flaky, non-metallic substrates, characterised by a surface-region containing free108
- C09C 1/0009Pigments for ceramics106
- C09C 1/34Compounds of chromium94
- C09C 1/0006Containing bismuth and vanadium43
- C09C 1/14Compounds of lead40
- C09C 1/10Compounds of cadmium38
- C09C 1/66Copper alloys33
- C09C 1/0003Compounds of molybdenum28
- C09C 1/0096Compounds of antimony26
- C09C 1/38Compounds of mercury4
Recent patents
- 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 and system for multicolor photonic pigments from magneticially assembled nanorod arrays29 Sep 2026US 12,748,324 B2The Regents of the University of California
- Ultrafine surface-treated fillers for thin breathable films22 Sep 2026US 12,742,058 B2Omya International AG
- Surface-treated infrared-absorbing fine particles and method for producing the same, infrared-absorbing fine-particle dispersion liquid, and infrared-absorbing fine-particle dispersion body22 Sep 2026US 12,742,077 B2Sumitomo Metal Mining Co., Ltd.
- 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