Inventor · Leverkusen, DE

Albert Schnatterer

28Patents
2h-index
53Co-inventors
60Inventor score

Filing activity: Dec 9, 1988 → Apr 15, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US5130493A Process for the preparation of o-hydroxy-benzaldehydes Performing Operations; Transporting 10 Expired
US4929766A Process are the preparation of p-hydroxy-benzaldehydes Chemistry; Metallurgy 6 Expired
US9376389B2 Process for preparing 2,2-difluoroethylamine derivatives by alkylating 2,2-difluoroethylamine Chemistry; Metallurgy 1 Active
US5576463A Process for the preparation of 2-nitrobenzaldehydes Chemistry; Metallurgy 1 Expired
US5010193A Preparation of phosphoric acid derivatives and intermediates Chemistry; Metallurgy 1 Expired
US6927302B2 Process for the arylation of olefins Chemistry; Metallurgy 1 Expired
US8710238B2 Cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives Chemistry; Metallurgy 0 Active
US10899722B2 Process for the preparation of fluoroalkylnitriles and the corresponding fluoroalkyltetrazoles Chemistry; Metallurgy 0 Active
US5773664A Process for the recovery of 4-hydroxybenzaldehyde from reaction mixtures containing same Chemistry; Metallurgy 0 Expired
US10647674B2 Catalytic hydrogenation of substituted cyanopyridines and process for preparing substituted pyridylmethylbenzamides General 0 Revoked
US6392050B2 Process for preparing substituted pyridines Chemistry; Metallurgy 0 Expired
US9139547B2 Multistage process for preparing alkali metal salts of specific 4-hydroxy-2-oxo-2,5-dihydrofuran-3-carboxylic esters Chemistry; Metallurgy 0 Active
US11384061B2 Process for preparing esters of N-acylated amino acids with acid-labile keto protective group functions Chemistry; Metallurgy 0 Active
US10781176B2 Catalytic hydrogenation of substituted cyanopyridines and process for preparing substituted pyridylmethylbenzamides Chemistry; Metallurgy 0 Active
US10807955B2 Process for the preparation of a 2-pyridylethylcarboxamide derivative Chemistry; Metallurgy 0 Active
US9029577B2 Method for producing methylene-1,3-dioxolanes Chemistry; Metallurgy 0 Active
US8785673B2 Method for producing 2-chloroallyl thiocyanate and 2-chloroallyl isothiocyanate Chemistry; Metallurgy 0 Active
US9890120B2 Preparation of N-[(6-chloropyridin-3-yl)methyl]-2,2-difluoroethan-1-amine by alkylation of 2,2-difluoroethylamine Chemistry; Metallurgy 0 Active
US8680316B2 Process for the preparation of cis-1-ammonium-4-alkoxycyclohexanecarbonitrile salts Chemistry; Metallurgy 0 Active
US11339137B2 Method for producing 3,4-dichloro-N-(2-cyanophenyl)-5-isothiazolecarboxamide Chemistry; Metallurgy 0 Active
US9988353B2 Catalytic hydrogenation of nitriles Chemistry; Metallurgy 0 Active
US5808141A Process for preparing 4,4'-dinitrostilbene-2,2'-disulphonic acid Chemistry; Metallurgy 0 Expired
US10414730B2 Catalytic hydrogenation of nitriles Chemistry; Metallurgy 0 Active
US6365780B1 Process for the preparation of aromatic or heteroaromatic sulphonyl chlorides Chemistry; Metallurgy 0 Expired
US5760247A Process for the preparation of carbazole Chemistry; Metallurgy 0 Expired

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