Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Oil-based ink composition for ballpoint pen using oil-based ink

Oil-based ink composition for ballpoint pen using oil-based ink

US Patent 7462229 · Granted Dec 9, 2008

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Liquid storage member for coating tools2023
Ink reservoir unit for writing instruments and writing instruments2023
Ink composition for writing instrument and coloring material2017
Colorant, microcapsule pigment prepared by using the same and ink composition fo2016
Structure of front section of vehicle body2014
Structure for front section of vehicle body2014
Structure for vehicle body front portion2014
Oil-based ink composition for writing utensil and writing utensil employing the 2010
Oil-based ink composition for ballpoint pen and ball-point pen using oil-based i2009
Oil-based ink composition for ballpoint pen and ball-point pen using oil-based i2009
Follower for non-aqueous ball point pen and non-aqueous ball point pen2007
Oil-base ballpoint ink composition and oily ballpoint pens2007