Permanent ink compositions and writing instruments containing same
US8741039B2 · kind B2 · utility
0Cited by
51References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Dec 18, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The ink compositions comprise at least one solvent, at least one colorant, and at east one oil, and may be delivered from any of a variety of writing instruments including but not limited to ball pens, fountain pens, felt tip pens, and markers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.