Inventor · Idstein, DE

Stefan Engel

47Patents
9h-index
36Co-inventors
71Inventor score

Filing activity: Feb 3, 1997 → Apr 25, 2007

Most-cited inventions

PatentTitleAreaCited byStatus
US6479436B1 Hetaroyl cyclohexanedione derivatives with herbicidal effect Chemistry; Metallurgy 58 Expired
US6262074A 4-Hetaroylpyrazol derivatives and the use thereof as herbicides Human Necessities 58 Expired
US5846907A Herbicidally active pyrazol-4-ylbenzoyl compounds Chemistry; Metallurgy 51 Expired
US6004903A 2-Anylocyclohexanediones having improved herbicidal properties Chemistry; Metallurgy 34 Expired
US6165944A 4-(3-heterocyclyl-1-benzoyl) pyrazoles and their use as herbicides Chemistry; Metallurgy 28 Expired
US5846906A Herbicidally active phenyldiketone compounds Chemistry; Metallurgy 15 Expired
US6153759A Heterocyclic benzoyl intermediates for herbicidal compounds Chemistry; Metallurgy 14 Expired
US5939359A Herbicidal pyrazine derivatives Chemistry; Metallurgy 13 Expired
US5834402A Isoxazolylbenzoyl derivatives Chemistry; Metallurgy 12 Expired
US6156702A Substituted 4-benzoylpyrazoles Chemistry; Metallurgy 8 Expired
US6207618A Heterocyclic substituted 4-benzoyl-pyrazole as herbicides Chemistry; Metallurgy 7 Expired
US6432881B1 2-benzoylcyclohexane-1,3-dione as herbicides Chemistry; Metallurgy 7 Expired
US6028033A N-aminopyridone derivatives and their use as herbicides Chemistry; Metallurgy 6 Expired
US6559100B1 2-benzoyl-cyclohexane-1,3-diones Chemistry; Metallurgy 5 Expired
US5744425A Saccharin derivatives Chemistry; Metallurgy 4 Expired
US6013607A 2-hetaroylcyclohexane-1,3-diones Chemistry; Metallurgy 3 Expired
US7232792B2 3-heterocyclyl-substituted benzoyl derivatives Chemistry; Metallurgy 3 Expired
US6165943A Thiazolimine derivatives Chemistry; Metallurgy 3 Expired
US7772446B2 Method for producing substituted biphenyls Chemistry; Metallurgy 3 Expired
US5925767A Pyrazole-4-yl-hetaroyl derivatives as herbicides Chemistry; Metallurgy 2 Expired
US6054414A Benzoyl derivatives Chemistry; Metallurgy 2 Expired
US6271179A Benzylidene pyrazolones, production and use thereof Chemistry; Metallurgy 2 Expired
US6143696A Substituted 4-(3-alkenylbenzoyl)pyrazoles Chemistry; Metallurgy 2 Expired
US6291682A Pyrazol-4-ylbenzoyl derivatives and their use as herbicides Chemistry; Metallurgy 1 Expired
US9045465B1 3-heterocyclyl-substituted benzoyl derivatives Chemistry; Metallurgy 1 Expired

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