Inventor · Leverkusen, DE

Norbert Mencke

96Patents
18h-index
97Co-inventors
83Inventor score

Filing activity: Oct 15, 1991 → Aug 20, 2004

Most-cited inventions

PatentTitleAreaCited byStatus
US6316486A Alkyl dihalogenated phenyl-substituted ketoenols useful as pesticides and herbicides Chemistry; Metallurgy 81 Expired
US6358887B1 2-Phenyl-substituted heterocyclic 1,3-ketonols as herbicides and pesticides Chemistry; Metallurgy 80 Expired
US6110872A 2,4,5-trisubstituted phenylketo-enols for use as pesticides and herbicides Chemistry; Metallurgy 67 Expired
US5830825A 3-aryl-tetronic acid derivatives, the production thereof and the use thereof as antiparasitic agents Chemistry; Metallurgy 55 Expired
US6511942B1 2,4,5-trisubstituted phenylketo-enols for use as pesticides and herbicides Chemistry; Metallurgy 52 Expired
US6380246B1 Alkyl-dihalogenated phenyl-substituted ketoenols useful as pesticides and herbicides Chemistry; Metallurgy 49 Expired
US5840661A 2-aryl cyclopentane-1,3-dione derivatives Chemistry; Metallurgy 45 Expired
US5808135A 2-(2,4,6-trimethyl phenyl)cyclopentane-1,3-dione derivatives Chemistry; Metallurgy 38 Expired
US5977029A 3-aryl-5-halogen-pyrone derivatives as pest control agents Chemistry; Metallurgy 36 Expired
US6251833A 2-arylcyclopentan-1,3-diones Chemistry; Metallurgy 31 Expired
US6071937A Oxymethoxy-3-aryl-pyrone derivatives Chemistry; Metallurgy 28 Expired
US5580843A Substituted 1-arylpyrazoles Chemistry; Metallurgy 28 Expired
US6150304A 2-aryl-cyclopentane-1,3-dione derivatives Chemistry; Metallurgy 26 Expired
US6051723A 3-aryl-tetronic acid derivatives Chemistry; Metallurgy 25 Expired
US6159932A Endoparasiticidal compositions Human Necessities 20 Expired
US6274613A Cyclic imines as pesticides Human Necessities 20 Expired
US5777075A Octacyclodepsipeptides having an endoparasiticidal action Chemistry; Metallurgy 19 Expired
US6258957A N-aryl-1,2,4-triazolin-5-ones Chemistry; Metallurgy 18 Expired
US6399771B1 Cyclic imines as pesticides Human Necessities 18 Expired
US6630569B1 Ectoparasiticide agents Human Necessities 18 Expired
US5985904A 1,2,4-oxadiazole derivatives and their use as parasiticides for animals Human Necessities 17 Expired
US6265537A Thiodepsipeptides for combating endoparasites and a method for producing the same Chemistry; Metallurgy 16 Expired
US5717063A Octacyclodepsipeptides having an endoparasiticidal action Human Necessities 16 Expired
US5589503A Endoparasiticidal compositions Human Necessities 13 Expired
US6503912B1 Substituted guanidine derivatives Chemistry; Metallurgy 13 Expired

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