C09B 68/42
Ionic groups
Official title: {Ionic groups, e.g. free acid}
C09B68/42 (Ionic groups) appears on 61 US grants and 73 published applications in this corpus.
Search patents in C09B- Granted patents
- 61
- Published applications
- 73
- Assignees
- 37
- Inventors
- 176
- Latest grant
- 29 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 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 | 2 | 2 |
| 2002 | 3 | 2 |
| 2003 | 2 | 3 |
| 2004 | 3 | 3 |
| 2005 | 0 | 4 |
| 2006 | 4 | 6 |
| 2007 | 1 | 11 |
| 2008 | 6 | 6 |
| 2009 | 3 | 3 |
| 2010 | 6 | 3 |
| 2011 | 2 | 4 |
| 2012 | 2 | 9 |
| 2013 | 4 | 0 |
| 2014 | 5 | 2 |
| 2015 | 2 | 2 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 4 |
| 2024 | 2 | 1 |
| 2025 | 2 | 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
- Amphiphilic block copolymer25 Feb 2025US 12,234,311 B2BYK-Chemie GmbH
- Hybrid pigments and methods of making same23 Jul 2024US 12,043,745 B2Day-Glo Color Corp.
- Phycocyanin pigment composition9 Apr 2024US 11,952,497 B2DIC Corporation
- Manipulating hydrophilicity of conventional dye molecules for water tracer applications15 Aug 2023US 11,725,139 B2Saudi Arabian Oil Company
- 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
- Phycocyanin pigment composition4 May 2023US 2023/0139450 A1DIC Corporation
- Amphiphilic block copolymer30 Mar 2023US 2023/0095096 A1BYK-Chemie GmbH
Most cited
By later US patents
- Electrophoretic particles and processes for the production thereof363US 6,822,782 B2E Ink Corporation · 2004
- Ink compositions containing modified pigment particles217US 5,281,261 AXerox Corporation · 1994
- Electrophoretic particles and processes for the production thereof121US 7,411,720 B2E Ink Corporation · 2008
- Modified pigments having improved dispersing properties46US 6,336,965 B12002
- Modified pigments having improved dispersing properties45US 6,478,863 B2Cabot Corporation · 2002