Inventor · Speyer, DE

Alfred Krause

14Patents
3h-index
33Co-inventors
60Inventor score

Filing activity: Mar 24, 1975 → Mar 15, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US5821380A 2-cyanoacrylic esters Chemistry; Metallurgy 59 Expired
US5710228A Maleimide/.alpha.-olefin copolymers and their use as light stabilizers and stabilizers for organic material Chemistry; Metallurgy 24 Expired
US3945206A Control system for hydraulic presses comprising a plurality of press rams Mechanical Engineering; Lighting; Heating 7 Expired
US5504211A Polyalkylpiperidinyl-containing .beta.-aminoacrylic ester derivatives Chemistry; Metallurgy 2 Expired
US5434202A N-(.beta.-carbony- and .beta.-cyanovinyl)-2,2,6,6-tetramethyl-piperidine derivatives Chemistry; Metallurgy 1 Expired
US7307194B2 Method for producing 1, 6 hexane diol Chemistry; Metallurgy 1 Expired
US6011157A Process for purifying sterically hindered 4-amino piperidines Chemistry; Metallurgy 1 Expired
US5973040A Tetramethylpiperidine-containing copolymers Human Necessities 1 Expired
US6013803A Sterically hindered 4-amino-piperidine with a low dimer content, its production and use Chemistry; Metallurgy 0 Expired
US9086191B2 Method for safely preventing backflowing in the conveying of a fluid Emerging Cross-Sectional Technologies 0 Active
US6132703A Cosmetic and pharmaceutical preparations containing photostable UV filters Human Necessities 0 Expired
US5670613A N-vinyl-containing glycoluril derivatives and their use as light stabilizers and stabilizers for organic material Chemistry; Metallurgy 0 Expired
US8734617B2 Process for preparing N,N-dimethylaminoethoxyethanol Performing Operations; Transporting 0 Active
US8791302B2 Process for preparing an N,N-dialky-ethanolamine having high color stability Chemistry; Metallurgy 0 Active

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