Inventor · Wuppertal, DE

Fritz Maurer

155Patents
9h-index
101Co-inventors
83Inventor score

Filing activity: Aug 16, 1974 → Feb 23, 2003

Most-cited inventions

PatentTitleAreaCited byStatus
US5589439A Tetrazolinone derivatives Chemistry; Metallurgy 26 Expired
US4127652A Combating pests with O-alkyl-O-[pyrimidin(5)yl]-(thiono)(thiol) phosphoric(phosphonic) acid esters and ester-amides Chemistry; Metallurgy 19 Expired
US4408055A Azolyloxy-carboxylic acid n-oxy-amide compounds Chemistry; Metallurgy 14 Expired
US4325948A Combating pests with 2-cycloalkyl-pyrimidin-5-yl-(thiono) (thiol)-phosphoric (phosphonic) acid esters and ester-amides Chemistry; Metallurgy 11 Expired
US3951975A O-Alkyl-S-alkyl-O-[2-substituted-pyrimidin(4)yl]thionothiolphosphoric acid esters Chemistry; Metallurgy 11 Expired
US4418073A Combating pests with N-acylated N-methyl-carbamic acid O-pyrazol-4-yl esters Chemistry; Metallurgy 11 Expired
US4666894A O-ethyl O-isopropyl O-(2-tert.-butylpryrimidin-5-yl)thionophosphate, composition and method of combatting soil insects with it Chemistry; Metallurgy 11 Expired
US4307107A Arthropodicidal N,N-dimethyl-O-(1,3,4-substituted-pyrazol(5)yl)-carbamic acid esters Chemistry; Metallurgy 10 Expired
US4233294A Method of combatting plutella maculipennis with O-isopropyl-S-[5-bromo-pyrimidin-2-yl]-thionothiol-methane-phosphonic acid Chemistry; Metallurgy 9 Expired
US4552900A 3-(Pyrimidin-5-yl-oxyphenyl)-1-benzoyl-(thio)-urea compounds useful as pesticides Human Necessities 9 Expired
US4521420A Oxoquinazoline carbamates Chemistry; Metallurgy 8 Expired
US4163052A Pesticidal O-[3-t-butylpyrazol-5-yl]phosphoric and thionophosphoric acid esters Chemistry; Metallurgy 8 Expired
US5641727A Herbicidal 1-pyridyltetrazolinones Human Necessities 7 Expired
US4261983A Combating pests with O-alkyl-O-(2-cyclopropyl-pyrimidin-4-yl)-thiono)(thiol)-phosphoric(phosp honic) acid esters and ester-amides Chemistry; Metallurgy 7 Expired
US4382947A Combating pests with N-methyl-carbamic acid O-pyrazol-4-yl esters Human Necessities 7 Expired
US4326087A 3-Bromo-4-fluoro-benzyl derivatives Chemistry; Metallurgy 7 Expired
US3966730A Pyrimidin(4)-yl-(thiono)-(thiol)-phosphoric-(phosphonic)-acid esters Chemistry; Metallurgy 7 Expired
US4695646A Aminoacrylic acid derivatives Chemistry; Metallurgy 6 Expired
US4014996A O-Alkyl-O-pyrimidin (2)yl-thionophosphonic acid esters Chemistry; Metallurgy 6 Expired
US5389648A Insecticidal pyrazolines Chemistry; Metallurgy 6 Expired
US4882321A Thionophosphonic acid ester arthropodicides Chemistry; Metallurgy 6 Expired
US4399285A Tetrazolyloxyacetic acid amides, piperidides and perhydro azepinides Chemistry; Metallurgy 6 Expired
US4126690A Combating arthropods with N,N-dimethyl-O-[3-(substituted-methyl)-pyrazol-5-yl]-carbamic acid esters Chemistry; Metallurgy 6 Expired
US4059696A Pyrimidine (4,6)diyl-bis-(thiono)(thiol)-phosphoric(phosphonic)acid esters Chemistry; Metallurgy 5 Expired
US4013657A O-ethyl-S-n-propyl-O-[pyridaz-(6)-on-(3)-yl]-thionothiolphosphoric acid esters Chemistry; Metallurgy 5 Expired

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