Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Water-based ballpoint pen

Water-based ballpoint pen

US Patent 8511926 · Granted Aug 20, 2013

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Ammonia-fueled gas turbine2024
Wheel loader2021
Oil-based ink composition for writing instruments, and writing instrument, marki2021
Wheel loader2021
Combustion experiment device2019
Carrier bar and carrier bar assembly structure2017
Combustion experimental apparatus2017
Fuel property determination method and fuel property determination device2016
Fuel physical property determination method and fuel physical property determina2016
Water-based ink composition for ballpoint pens2013
Mobile Projector apparatus and method of controlling the same2012
Gamma correction device and gamma correction method for liquid crystal display d2011