Inventor · Tournon-sur-Rhône, FR

Stephane Kressmann

45Patents
15h-index
45Co-inventors
81Inventor score

Filing activity: Sep 7, 1995 → Oct 22, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US6203695A Hydrotreating hydrocarbon feeds Performing Operations; Transporting 109 Expired
US6447671B1 Process for converting heavy petroleum fractions, comprising an ebullated bed hydroconversion step and a hydrotreatment step Chemistry; Metallurgy 56 Expired
US6306287A Process for hydrotreatment of a heavy hydrocarbon fraction using permutable reactors and introduction of a middle distillate Chemistry; Metallurgy 55 Expired
US6309537A Hydrotreating hydrocarbon feeds in an ebullating bed reactor Chemistry; Metallurgy 48 Expired
US6436280B1 Catalyst for hydrotreating hydrocarbon feeds in a fixed bed reactor Performing Operations; Transporting 44 Expired
US7479217B2 Series of hydroconversion and steam reforming processes to optimize hydrogen production on production fields Chemistry; Metallurgy 40 Active
US6277270A Process for converting heavy petroleum fractions that comprise a fixed-bed hydrotreatment stage, an ebullated-bed conversion stage, and a catalytic cracking stage Chemistry; Metallurgy 31 Expired
US6207041A Process for converting heavy crude oil fractions, comprising an ebullating bed hydroconversion step and a hydrotreatment step Chemistry; Metallurgy 28 Expired
US7119045B2 Catalyst for hydrorefining and/or hydroconversion and its use in hydrotreatment processes for batches containing hydrocarbons Performing Operations; Transporting 25 Expired
US6017441A Multi-step catalytic process for conversion of a heavy hydrocarbon fraction Chemistry; Metallurgy 24 Expired
US6117306A Catalytic process for conversion of a petroleum residue using a fixed bed hydrodemetallization catalyst Emerging Cross-Sectional Technologies 23 Expired
US6620311B2 Process for converting petroleum fractions, comprising an ebullated bed hydroconversion step, a separation step, a hydrodesulphurization step and a cracking step Chemistry; Metallurgy 22 Expired
US6171477A Hydroconversion of vacuum distillates and deasphalted oils in fixed beds and boiling beds Chemistry; Metallurgy 19 Expired
US9260671B2 Process for the treatment of heavy oils using light hydrocarbon components as a diluent Chemistry; Metallurgy 19 Active
US7279090B2 Integrated SDA and ebullated-bed process Chemistry; Metallurgy 18 Expired
US6043187A Catalyst for hydrotreating hydrocarbon feeds in a fixed bed reactor Performing Operations; Transporting 14 Expired
US6280606A Process for converting heavy petroleum fractions that comprise a distillation stage, ebullated-bed hydroconversion stages of the vacuum distillate, and a vacuum residue and a catalytic cracking stage Chemistry; Metallurgy 11 Expired
US6132597A Hydrotreating hydrocarbon feeds in an ebullating bed reactor Chemistry; Metallurgy 11 Expired
US6007703A Multi-step process for conversion of a petroleum residue Chemistry; Metallurgy 7 Expired
US9598647B2 Process for oxidative desulfurization and sulfone disposal using solvent deasphalting Chemistry; Metallurgy 6 Active
US6187174A Process for converting heavy petroleum fractions in an ebullated bed, with addition of a pre-conditioned catalyst Chemistry; Metallurgy 5 Expired
US5770154A Device for testing and for analyzing a petrochemical process Performing Operations; Transporting 5 Expired
US9574143B2 Desulfurization and sulfone removal using a coker Chemistry; Metallurgy 4 Active
US8632673B2 Process for catalytic hydrotreating of sour crude oils Performing Operations; Transporting 4 Active
US5954950A Intensive hydrofining of petroleum fractions Chemistry; Metallurgy 4 Expired

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