Inventor · Riegelsberg, DE

Helmut Schmidt

186Patents
31h-index
223Co-inventors
93Inventor score

Filing activity: Apr 24, 1975 → May 22, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US5470910A Composite materials containing nanoscalar particles, process for producing them and their use for optical components Emerging Cross-Sectional Technologies 113 Expired
US6291070A Nanostructured moulded bodies and layers and method for producing same Emerging Cross-Sectional Technologies 103 Expired
US5590387A Method for producing metal and ceramic sintered bodies and coatings Chemistry; Metallurgy 97 Expired
US5644014A Coating compositions based on fluorine-containing inorganic polycondensates, their production and their use Chemistry; Metallurgy 95 Expired
US5716679A Optical elements containing nanoscaled particles and having an embossed surface and process for their preparation Physics 95 Expired
US6581906B2 Connector having an inner displacement member Emerging Cross-Sectional Technologies 93 Expired
US6576182B1 Process for producing shrinkage-matched ceramic composites Emerging Cross-Sectional Technologies 85 Expired
US5766680A Method of producing structured inorganic layers Chemistry; Metallurgy 79 Expired
US5910522A Composite adhesive for optical and opto-electronic applications Physics 75 Expired
US7022305B2 Nanoscale corundum powders, sintered compacts produced from these powders and method for producing the same Chemistry; Metallurgy 68 Expired
US6187256A Method of producing a conductive silicon carbide-based sintered compact Mechanical Engineering; Lighting; Heating 67 Expired
US5573584A Interference pigments for preparing forgeryproof documents Chemistry; Metallurgy 66 Expired
US6287639A Composite materials Chemistry; Metallurgy 65 Expired
US6236493A Optical components with a graded-index structure, and method of manufacturing such components Emerging Cross-Sectional Technologies 62 Expired
US5593781A Method of manufacturing surface-modified ceramic powders with particles in the nanometer size Emerging Cross-Sectional Technologies 57 Expired
US6541039B1 Nanoscale particles having an iron oxide-containing core enveloped by at least two shells Human Necessities 56 Expired
US4381465A Stator arrangement for small motors Electricity 56 Expired
US6255477A Particles having a magnetic core and outer glass layer for separating biological material Emerging Cross-Sectional Technologies 54 Expired
US4746366A Process and lacquer for the production of scratch-resistant coatings Emerging Cross-Sectional Technologies 53 Expired
US5710197A Crosslinked polymer particles containing a fluorescent dye Chemistry; Metallurgy 51 Expired
US5891366A Anisotropically conducting adhesive, and process for producing an anisotropically conducting adhesive Electricity 47 Expired
US6008285A Process for the production of compounds based on silanes containing epoxy groups Chemistry; Metallurgy 40 Expired
US5360834A Process for photoinitiated control of inorganic network formation in the sol-gel process Chemistry; Metallurgy 40 Expired
US6183658A Process for preparing agglomerate-free nanoscalar iron oxide particles with a hydrolysis resistant coating Emerging Cross-Sectional Technologies 39 Expired
US6228921A Process for the production of compounds based on silanes containing epoxy groups Chemistry; Metallurgy 35 Expired

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