Inventor · Wettingen, CH

Wilhelm Maier

17Patents
8h-index
11Co-inventors
65Inventor score

Filing activity: May 13, 1992 → Oct 29, 2001

Most-cited inventions

PatentTitleAreaCited byStatus
US5250184A Procedure for the preparation of microporous ceramic membranes for the separation of gas and liquid mixtures Emerging Cross-Sectional Technologies 32 Expired
US5994657A Device and method for sorting mailed pieces Emerging Cross-Sectional Technologies 28 Expired
US6082521A Apparatus and method for transposing sorted goods into an ordered sequence Emerging Cross-Sectional Technologies 27 Expired
US6121187A Amorphous, microporous mixed oxide catalysts with controlled surface polarity for selective heterogeneous catalysis, adsorption and material separation Performing Operations; Transporting 18 Expired
US6297180A Microporous amorphous mixed metal oxides for shape selective catalysis Chemistry; Metallurgy 13 Expired
US6319876A Microporous amorphous mixed metal oxides for form-selective catalysis Chemistry; Metallurgy 12 Expired
US5857555A Actuating device for tilting a structural component Performing Operations; Transporting 11 Expired
US6059091A Apparatus for and method of merging stream of presorted pieces into an ordered row Performing Operations; Transporting 11 Expired
US5992609A Apparatus for sorting by directing individual pieces Emerging Cross-Sectional Technologies 7 Expired
US6825048B1 Combinational method for microgram-scale production and characterization of crystalline and amorphous libraries of materials Chemistry; Metallurgy 6 Expired
US5492873A Processor for producing poison-resistant catalysts Performing Operations; Transporting 4 Expired
US7052914B2 Automated method for examining catalytic and spectroscopic properties of the components of combinatorial libraries Emerging Cross-Sectional Technologies 4 Expired
US7033837B1 Method for combinatorial material development using differential thermal images Chemistry; Metallurgy 4 Expired
US6303800A Method for producing propene oxide Emerging Cross-Sectional Technologies 3 Expired
US5819909A Apparatus for receiving and transporting flat articles Performing Operations; Transporting 1 Expired
US5559259A Process for producing poison-resistant catalysts Performing Operations; Transporting 0 Expired
US5895043A Device for feeding a conveying apparatus Performing Operations; Transporting 0 Expired

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