Inventor · Oberursel, DE

Wilfried Weiss

44Patents
9h-index
51Co-inventors
78Inventor score

Filing activity: Apr 27, 1987 → Apr 28, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US9650580B2 Integrated process for the treatment of oil feeds for the production of fuel oils with a low sulphur and sediment content Chemistry; Metallurgy 79 Active
US9840674B2 Process for converting petroleum feedstocks comprising an ebullating-bed hydrocracking stage, a maturation stage and a stage of separating the sediments for the production of fuel oils with a low sediment content Chemistry; Metallurgy 67 Active
US9896630B2 Process for hydroconverting oil feeds in fixed beds for the production of low sulphur fuels Emerging Cross-Sectional Technologies 55 Active
US9458396B2 Process for conversion of feedstocks obtained from renewable sources based on marine fuels Emerging Cross-Sectional Technologies 51 Active
US9834731B2 Process for converting petroleum feedstocks comprising a stage of fixed-bed hydrotreatment, a stage of ebullating-bed hydrocracking, a stage of maturation and a stage of separation of the sediments for the production of fuel oils with a low sediment content Chemistry; Metallurgy 31 Active
US10266779B2 Conversion process comprising at least one step for fixed bed hydrotreatment and a step for hydrocracking in by-passable reactors Chemistry; Metallurgy 30 Active
US4895989A Process for producing alkali metal alcoholates Emerging Cross-Sectional Technologies 23 Expired
US9163180B2 Process for the conversion of carbon-based material by a hybrid route combining direct liquefaction and indirect liquefaction in the presence of hydrogen resulting from non-fossil resources Emerging Cross-Sectional Technologies 11 Active
US10597591B2 Conversion process comprising permutable hydrodemetallization guard beds, a fixed-bed hydrotreatment step and a hydrocracking step in permutable reactors Chemistry; Metallurgy 10 Active
US5019214A Twin-wire former for the production of a web of paper Textiles; Paper 8 Expired
US11421166B2 Process for the production of fuels of heavy fuel type from a heavy hydrocarbon-containing feedstock using a separation between the hydrotreatment stage and the hydrocracking stage Chemistry; Metallurgy 8 Active
US8916043B2 Coal conversion process and products, comprising two direct ebullated bed liquefaction stages and a fixed bed hydrocracking stage Emerging Cross-Sectional Technologies 7 Active
US8623102B2 Process for direct hydorliquefaction of biomass comprising two stages of ebullating bed hydroconversion Emerging Cross-Sectional Technologies 7 Active
US10843158B2 Filtering and distribution device for catalytic reactor Performing Operations; Transporting 3 Active
US5677543A Dissolved methyllithium-containing composition for use in synthesis reactions Chemistry; Metallurgy 3 Expired
US5574197A Method of making a stable non-pyrophoric lithium diorganoamide solution Chemistry; Metallurgy 2 Expired
US5149889A Composition for use in organolithium synthesis reactions Chemistry; Metallurgy 2 Expired
US5304702A Process of decomposing chlorofluorohydrocarbons Human Necessities 2 Expired
US4982017A Composition for use in organolithium synthesis reactions Chemistry; Metallurgy 2 Expired
US4725311A Process for producing alkali metals in elemental form Emerging Cross-Sectional Technologies 2 Expired
US7175784B2 Method for the production of alkyl lithium compounds by using reduced pressure Chemistry; Metallurgy 1 Expired
US6495064B2 Ethyllithium in dibutyl ether Chemistry; Metallurgy 1 Expired
US10828632B2 Method for compositional sorting of catalyst or adsorbent in mixtures of catalysts and/or adsorbents Physics 1 Active
US6756024B2 Method for preparing lithium amide Chemistry; Metallurgy 1 Expired
US10844291B2 Method for treating a hydrocarbon feedstock comprising a deasphalting step and an asphalt conditioning step Chemistry; Metallurgy 0 Active

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