Inventor · disambiguated record
Udo Holtmann
Also filed as: HOLTMANN UDO
6 granted patents·70 citations·filing 1992–2017
80Inventor score
Top patents by PatentIndex Score
6 records- 0181US9428402B2Method for producing finely divided haematite and for producing iron oxide red pigmentsLANXESS DEUTSCHLAND GMBH·Filed 2012·Granted Aug 30, 2016·4 cites·20 claims
- 0272US5723404AProcess for the production of mixed oxide powders for catalysts for the removal of nitrogen oxidesBAYER AG·Filed 1996·Granted Mar 3, 1998·46 cites·10 claims
- 0370US7837785B2Process for the preparation of pigment granules and the use thereofLANXESS DEUTSCHLAND GMBH·Filed 2007·Granted Nov 23, 2010·2 cites·71 claims
- 0458US5792250AProcess for the production of inorganically coated pigments and fillersBAYER AG·Filed 1997·Granted Aug 11, 1998·15 cites·8 claims
- 0541US11104807B2Preparation of red iron oxide pigmentLANXESS DEUTSCHLAND GMBH·Filed 2017·Granted Aug 31, 2021·0 cites·6 claims
- 0636US5268159AProcess for the production of storable, free-flowing hydrated ferrous sulfateBAYER AG·Filed 1992·Granted Dec 7, 1993·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →