Inventor · disambiguated record
Hendrik Kathrein
Also filed as: KATHREIN HENDRIK
6 granted patents·18 citations·filing 1987–2005
76Inventor score
Top patents by PatentIndex Score
6 records- 0165US7267776B2Foams for removing pollutants and/or heavy metals from flowable mediaLANXESS DEUTSCHLAND GMBH·Filed 2005·Granted Sep 11, 2007·2 cites·8 claims
- 0254US4923519AMagnetic iron oxide pigments and a process for their preparationBAYER AG·Filed 1987·Granted May 8, 1990·9 cites·12 claims
- 0338US4933014AMagnetic iron oxide pigments and a process for their preparationBAYER AG·Filed 1987·Granted Jun 12, 1990·4 cites·6 claims
- 0429US5480570ALow coercive iron oxide pigments and a process for their preparationTODA KOGYO CORP·Filed 1994·Granted Jan 2, 1996·1 cites·2 claims
- 0526US5948722AMethod for producing iron-based catalystsUS ENERGY·Filed 1997·Granted Sep 7, 1999·0 cites·44 claims
- 0625US5116419AProcess for the preparation of magnetic iron oxides and the pigments obtained therefromKATHREIN HENDRIK·Filed 1989·Granted May 26, 1992·2 cites·14 claims
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