Duisburg
Germany
4
2006-12-21
The entities that hold a legal rights for patent applications filed by inventor Koch Daniel:
Daniel Koch from Duisburg, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Process for the preparation of polyamines of the diphenylmethane series at a low degree of protonation
#2 | 2006-10-05Process for the preparation of di- and polyamines of the diphenylmethane series
#3 | 2006-05-09Process for the production of polyisocyanates of the diphenylmethane series by phosgenation of non-neutralized polyamine of the diphenylmethane series
#4 | 2006-02-02Process for preparing polyisocyanates by the adiabatic phosgenation of primary amines
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