Inventor · disambiguated record

Hubertus W. H. M. Roncken

Also filed as: RONCKEN HUBERTUS W H M

2 granted patents·4 citations·filing 1974–1974

46Inventor score

Technology areasG03G

Files withOCE VAN DER GRINTEN NV2

Top patents by PatentIndex Score

2 records

0132US4054450AIndirect electrophotographic process with a nitro-phenolsultonephthaleinOCE VAN DER GRINTEN NV·Filed 1974·Granted Oct 18, 1977·3 cites·8 claims
0225US3951655ADye sensitized photoconductive materialOCE VAN DER GRINTEN NV·Filed 1974·Granted Apr 20, 1976·1 cites·6 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →