Inventor · Marl, DE

Dieter Hess

47Patents
10h-index
57Co-inventors
78Inventor score

Filing activity: Jun 28, 1991 → Mar 29, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US6482992B2 Multistage process for the preparation of oxo aldehydes and/or alcohols Chemistry; Metallurgy 41 Expired
US5093534A Process for the preparation of saturated alcohols from aldehydes Chemistry; Metallurgy 38 Expired
US7009068B2 Phosphite compounds and the metal complexes thereof Performing Operations; Transporting 33 Expired
US6570033B2 Bisphosphite compounds and their metal complexes Chemistry; Metallurgy 31 Expired
US6818770B2 Phosphinine compounds and metal complexes thereof Performing Operations; Transporting 26 Expired
US6403837B1 Process for the catalytic preparation of aldehydes from olefins using ligand mixtures Chemistry; Metallurgy 21 Expired
US7193116B2 Method for producing aldehydes by means of hydroformylation of olefinically unsaturated compounds, said hydroformylation being catalyzed by unmodified metal complexes in the presence of cyclic carbonic acid esters Emerging Cross-Sectional Technologies 15 Expired
US8003816B2 Bisphosphite ligands for hydroformylation catalyzed by transition metals Chemistry; Metallurgy 15 Active
US7317130B2 Method for the hydroformylation of olefinically unsaturated compounds, especially olefins, in the presence of cyclic carbonic acid esters Chemistry; Metallurgy 13 Expired
US9914681B2 Preparation of high-quality oxo process alcohols from inconstant raw material sources Chemistry; Metallurgy 11 Active
US9725398B2 Benzene-based diphosphine ligands for alkoxycarbonylation Performing Operations; Transporting 10 Active
US7495134B2 Carbonylation method by adding secondary sterically hindered amines Performing Operations; Transporting 10 Active
US7161020B2 Phosphite compounds and novel phosphite metal complexes Chemistry; Metallurgy 9 Expired
US7217828B2 Phosphinine compounds and metal complexes thereof Performing Operations; Transporting 8 Expired
US10077228B2 Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Performing Operations; Transporting 7 Active
US7495133B2 Method for hydroformylating olefins in the presence of organophosphoric compounds Chemistry; Metallurgy 7 Expired
US9272973B2 Stable long-term method for producing C5-aldehydes Chemistry; Metallurgy 7 Active
US9688604B2 Phosphine ligand and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Performing Operations; Transporting 7 Active
US10294191B2 Monophosphine compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Performing Operations; Transporting 6 Active
US10202329B2 Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds Performing Operations; Transporting 6 Active
US9206105B2 Mixture of bisphosphites and use thereof as a catalyst mixture in hydroformylation Chemistry; Metallurgy 5 Active
US9556096B2 Unsymmetric bisphosphite Chemistry; Metallurgy 5 Active
US8404902B2 Method for separating 1-butene from C4-containing hydrocarbon streams by hydroformylation Chemistry; Metallurgy 5 Active
US10017443B2 Optimized separation technique for work-up of homogeneously catalysed hydroformylation mixtures Performing Operations; Transporting 4 Active
US9221850B2 Monophosphite ligands having a tert-butyloxycarbonyl group Performing Operations; Transporting 4 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.