Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for preparing polyoxyethylene amines with urea linkages

Process for preparing polyoxyethylene amines with urea linkages

US Patent 5248821 · Granted Sep 28, 1993

Estimated economic value: $14,969,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Device for preparing electrode assembly and preparation method of electrode asse2022
Oligomer or polymer with carbonate segment chemical structure2021
Method of producing oligomer or polymer with carbonate segment chemical structur2021
Method for preparing polycarbonate polyol and composition comprising the polycar2020
Method for inhibiting microorganisms or plant pests using exfoliated clay/surfac2016
Method for preparing silver nanoparticles by employing ethanolamine and poly(sty2015
Method for reducing metal ion with nanosilicate platelets and dispersing metal n2015
Nanometal-polymer composite conductive film and method for preparing the same2014
Method for dispersing pigment in solvent2014
Inorganic/organic dispersant and application thereof2014
Method for collecting oil with modified clay2014
Organic/inorganic compositive dispersant including inorganic clay and organic su2014