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:
Jan. 14, 2025
Filed:
Mar. 29, 2023
Applicant:
Bic Violex Single Member S.a., Anoixi, GR;
Inventor:
Nikolaos Chrysanthakopoulos, Anoixi, GR;
Assignee:
BIC Violex Single Member S.A., Anoixi, GR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); G02F 1/13 (2006.01); G02F 1/1337 (2006.01); G02F 1/137 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13338 (2013.01); G02F 1/1313 (2013.01); G02F 1/133311 (2021.01); G02F 1/133723 (2013.01); G02F 1/13718 (2013.01); G06F 3/04162 (2019.05);
Abstract
In a first aspect, the present disclosure relates to a system comprising a writing instrument, wherein the writing instrument comprises a solution of one or more salts and a writing orifice. Furthermore, the system comprises a drawing substrate configured to change color based on the concentration of the one or more salts and/or water content, wherein the drawing substrate comprises cholesteric liquid-crystals.