C09B 68/425
Anionic groups
Official title: {Anionic groups}
C09B68/425 (Anionic groups) appears on 41 US grants and 51 published applications in this corpus.
Search patents in C09B- Granted patents
- 41
- Published applications
- 51
- Assignees
- 26
- Inventors
- 108
- Latest grant
- 29 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 5 |
| 2007 | 1 | 7 |
| 2008 | 3 | 6 |
| 2009 | 3 | 3 |
| 2010 | 5 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 8 |
| 2013 | 3 | 0 |
| 2014 | 4 | 2 |
| 2015 | 2 | 1 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Manipulating hydrophilicity of conventional dye molecules for tracer applications29 Apr 2025US 12,286,574 B2Saudi Arabian Oil Company
- Hybrid pigments and methods of making same23 Jul 2024US 12,043,745 B2Day-Glo Color Corp.
- Manipulating hydrophilicity of conventional dye molecules for water tracer applications15 Aug 2023US 11,725,139 B2Saudi Arabian Oil Company
- Modified colorants and inkjet ink compositions comprising modified colorants8 May 2018US 9,963,592 B2Cabot Corporation
- Modified colorants and inkjet ink compositions comprising modified colorants15 Aug 2017US 9,732,227 B2Cabot Corporation
- Composite colored particles19 Sep 2024US 2024/0309230 A1Mitsubishi Pencil Company, Limited
- Manipulating hydrophilicity of conventional dye molecules for tracer applications27 Jul 2023US 2023/0235218 A1Saudi Arabian Oil Company
- Manipulating hydrophilicity of conventional dye molecules for water tracer applications15 Jun 2023US 2023/0183564 A1Saudi Arabian Oil Company
- Hybrid pigments and methods of making same15 Dec 2022US 2022/0396701 A1Day-Glo Color Corp.
- Modified colorants and inkjet ink compositions comprising modified colorants26 Oct 2017US 2017/0306156 A1Cabot Corporation
Most cited
By later US patents
- Ink compositions containing modified pigment particles217US 5,281,261 AXerox Corporation · 1994
- Modified pigments having improved dispersing properties46US 6,336,965 B12002
- Modified pigments having improved dispersing properties45US 6,478,863 B2Cabot Corporation · 2002
- Method of attaching a group to a pigment37US 6,432,194 B1Cabot Corporation · 2002
- Method for manufacturing pigment dispersion, pigment dispersion obtained by this method, and ink jet recording ink using same36US 6,524,383 B2Seiko Epson Corporation · 2003