Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for preparation of formaldehyde copolymers

Process for preparation of formaldehyde copolymers

US Patent 4504636 · Granted Mar 12, 1985

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Flexible laminated board and multilayer circuit board2024
Fibrous product and fiber processing agent2020
Connector for optical fibers with lenses2020
Video output apparatus and video output method2020
Optical coupler and optical coupling method of optical fiber with GRIN lens2018
Allergen inhibitor, allergen-inhibiting product, allergen inhibiting method, and2014
Method and apparatus for measuring exit angle of optical fiber2013
Allergen inhibitor, allergen-inhibiting product, allergen inhibition method, and2013
RNA virus infection inhibitor, method for inhibition of infection by RNA virus, 2013
Allergen suppressor, allergen-suppression processed fiber and method of producin2013
Allergen suppressor, allergen-suppression processed fiber and method of producin2013
Method for manufacturing GRIN lens2011