Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for the preparation of di- and polyamines of the diphenylmethane series

Process for the preparation of di- and polyamines of the diphenylmethane series

US Patent 8399701 · Granted Mar 19, 2013

Estimated economic value: $34,670,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Disposer fluid injection assembly2025
Range hood installation system2025
Process for manufacturing an upgraded bio-oil from black liquor2024
Method for controlling the process for making isocyanates2019
Method for controlling the process for making isocyanates2019
Process for extracting phosgene2017
Process for extracting phosgene2017
Process to separate phosgene and hydrogen chloride from a fluid stream comprisin2017
Process for production of di- and polyamines of the diphenylmethane series2015
Process for the production of methylene-bridged polyphenyl polyamines2014
Method for removing methylene-bridged polyphenyl polyamines from an aqueous stre2014
Process for manufacturing isocyanates2014