Albrecht Marhold
242Patents
20h-index
168Co-inventors
93Inventor score
Filing activity: Mar 4, 1976 → Jan 18, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5045560A | Pesticidal tautomers of 3-aryl-pyrrolidine-2,4-diones and use thereas | Chemistry; Metallurgy | 66 | Expired |
| US5116836A | 3-phenyl-pyrrolidine-2,4-dione derivatives having pesticidal activity | Chemistry; Metallurgy | 64 | Expired |
| US4985063A | 3-aryl-pyrrolidine-2,4-diones | Chemistry; Metallurgy | 62 | Expired |
| US6020354A | Halobenzimidazoles and their use as microbicides | Chemistry; Metallurgy | 47 | Expired |
| US5059623A | Substituted cycloalkyl- and heterocyclyl-carboxanilides | Chemistry; Metallurgy | 45 | Expired |
| US5496866A | C.sub.3 to C.sub.5 polyfluoroalkanes propellants | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5069711A | Herbicidal N-aryl-substituted nitrogen-containing heterocycles | Chemistry; Metallurgy | 42 | Expired |
| US5186737A | Pesticidal 3-aryl-pyrrolidine-2,4-diones | Chemistry; Metallurgy | 36 | Expired |
| US5091537A | Intermediates for preparing 3-aryl-pyrrolidine-2,4-diones | Chemistry; Metallurgy | 33 | Expired |
| US6387939B1 | Halogenzimidazoles and their use as microbicides | Chemistry; Metallurgy | 31 | Expired |
| US5142065A | 3-aryl-pyrrolidine-2,4-diones | Chemistry; Metallurgy | 30 | Expired |
| US6103717A | Halogen pyrimidines and its use thereof as parasite abatement means | Chemistry; Metallurgy | 30 | Expired |
| US5171901A | Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropane | Chemistry; Metallurgy | 29 | Expired |
| US6638960B2 | Halogenobenzimidazoles and their use as microbicides | Chemistry; Metallurgy | 25 | Expired |
| US5593945A | N-cyanoaryl-nitrogen heterocycles | Chemistry; Metallurgy | 24 | Expired |
| US6162943A | Method for producing .alpha.-alkoxy-.alpha.-trifluoromethyl-aryl acetic esters and -aryl acetic acids | Chemistry; Metallurgy | 24 | Expired |
| US4931482A | Use of 1,1,1,4,4,4-hexaefluorobutane as a blowing and insulating gas for the production of foam plastics | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5681794A | N-cyanoaryl-nitrogen heterocycles | Chemistry; Metallurgy | 23 | Expired |
| US4183950A | Combating arthropods with 2,2-dimethyl-3-vinyl-cyclopropane carboxylic acid esters of halogenated benzyl alcohols | Human Necessities | 22 | Expired |
| US5637737A | Process for the preparation of 2,2-difluorobenzo[1.3]dioxolecarbaldehydes | Chemistry; Metallurgy | 20 | Expired |
| US4902839A | Process for preparing fluorinated C.sub.4 to C.sub.6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems | Chemistry; Metallurgy | 19 | Expired |
| US5463150A | Process for preparing hexafluorobutene | Chemistry; Metallurgy | 18 | Expired |
| US4886816A | Circulation-active dioxyalkylenearyl-dihydropyridines | Chemistry; Metallurgy | 18 | Expired |
| US4954666A | Process for preparing fluorinated C.sub.4 to C.sub.6 hydrocarbons and novel cyclic fluorinated hydrocarbons and their use as propellant gas and working fluid for heat pump systems | Chemistry; Metallurgy | 17 | Expired |
| US5006148A | N-aryl-substituted nitrogen-containing heterocycles, and their use as herbicides and plant growth regulators | Chemistry; Metallurgy | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.