Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Cardboard having great reigidity

Cardboard having great reigidity

US Patent 6221212 · Granted Apr 24, 2001

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Blade segment for refiner2025
Device for mechanically processing lignocellulose-containing fibrous material2024
Blade element2023
Blade segment for refiner2021
Blade element for refiner2019
Blade segment of disc refiner2017
Blade element2015
Refiner and blade element2015
Refiner and blade element2015
Refiner blade and segment, as well as a method of forming them and a method of m2011
Refining surface and a blade segment for a refiner2008
Cross-linkable ethylene-vinyl alcohol-acrylate polymer and method of producing t1993