The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Apr. 28, 2021
Applicant:
Société Bic, Clichy, FR;
Inventors:
Alexander Bourque, Clichy, FR;
Aurore Sauvage, Clichy, FR;
Assignee:
SOCIÉTÉ BIC, Clichy, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/50 (2014.01); B43K 7/00 (2006.01); B43K 8/02 (2006.01); C09D 11/17 (2014.01);
U.S. Cl.
CPC ...
C09D 11/50 (2013.01); C09D 11/17 (2013.01); B43K 7/00 (2013.01); B43K 8/024 (2013.01);
Abstract
A method for preparing a thermochromic water-based gel ink composition, as well as a thermochromic water-based gel ink composition thereof comprising a specific monocarboxylic or polycarboxylic acid. A writing instrument, such as a ballpoint pen, a brush pen, a marker, a highlighter, and a felt pen, comprising a thermochromic water-based gel ink composition according to the disclosure.