Inventor · disambiguated record
Ralf Echterhoff
Also filed as: ECHTERHOFF RALF
2 granted patents·1 pending application·9 citations·filing 2004–2006
47Inventor score
Technology areasC07C
Top patents by PatentIndex Score
3 records- 0173US7038002B2Production of mixtures of diisocyanates and polyisocyanates from the diphenylmethane series with high contents of 4,4′-methylenediphenyl diisocyanate and 2,4′-methylenediphenyl diisocyanateBAYER MATERIALSCIENCE AG·Filed 2004·Granted May 2, 2006·9 cites·11 claims
- 0238US7205430B2Production of di- and polyisocyanates of the diphenylmethane series with defined acidityBAYER MATERIALSCIENCE AG·Filed 2005·Granted Apr 17, 2007·0 cites·10 claims
- 0330US2008275269A1Process for the preparation of 4,4'-diphenylmethane diisocyanateKEGGENHOFF BERTHOLD·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →