Rolf Schroder
80Patents
11h-index
67Co-inventors
81Inventor score
Filing activity: Jul 23, 1974 → Jul 19, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3938170A | Still camera with expansible housing | Physics | 36 | Expired |
| US4127652A | Combating pests with O-alkyl-O-[pyrimidin(5)yl]-(thiono)(thiol) phosphoric(phosphonic) acid esters and ester-amides | Chemistry; Metallurgy | 19 | Expired |
| US4038673A | View finder for photographic apparatus utilizing objectives having different focal lengths | Physics | 16 | Expired |
| US4214830A | Conducting battery compartment closure that also locks film door | Physics | 15 | Expired |
| US5441135A | Hydrodynamic torque converter with lock-up clutch | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5292424A | Method for controlling the work cycle of electroplating plants | Electricity | 14 | Expired |
| US4187776A | Belt press | Performing Operations; Transporting | 13 | Expired |
| US3987469A | Miniature still camera with expansible housing | Physics | 12 | Expired |
| US5784652A | Modular camera with cassette chamber accessible through outerbody | Physics | 12 | Expired |
| US4038671A | Photographic apparatus with two picture taking lenses | Physics | 11 | Expired |
| US6071400A | Method and device for the electrochemical treatment with treatment liquid of an item to be treated | Electricity | 11 | Expired |
| US3968509A | Film advance and metering mechanism for cameras | Physics | 10 | Expired |
| US4307107A | Arthropodicidal N,N-dimethyl-O-(1,3,4-substituted-pyrazol(5)yl)-carbamic acid esters | Chemistry; Metallurgy | 10 | Expired |
| US4452625A | Synergistic compositions for inhibiting plant growth | Chemistry; Metallurgy | 10 | Expired |
| US4163052A | Pesticidal O-[3-t-butylpyrazol-5-yl]phosphoric and thionophosphoric acid esters | Chemistry; Metallurgy | 8 | Expired |
| US4196993A | Still-camera film transport system with end-of-film motor deenergization | Physics | 7 | Expired |
| US6705966B2 | Motor-vehicle drive train | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6597864B2 | Process and an apparatus for loading a disposable camera with a photographic roll film, and a disposable camera loaded with a photographic roll film | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6510281B2 | Process and an apparatus for loading a disposable camera with a photographic roll film, and a disposable camera loaded with a photographic roll film | Emerging Cross-Sectional Technologies | 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 |
| US4457870A | Regulating plant growth with novel 1-amino-cyclopropanecarboxylic acid metal complexes | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4126690A | Combating arthropods with N,N-dimethyl-O-[3-(substituted-methyl)-pyrazol-5-yl]-carbamic acid esters | Chemistry; Metallurgy | 6 | Expired |
| US4269492A | Photographic camera with single selector structure performing exposure-parameter adjustment and also switching of control and monitoring circuits | Physics | 6 | Expired |
| US4570014A | Cycloalkanecarboxylic acid compounds | Human Necessities | 5 | Expired |
| US4234587A | Combating pests with N,N-dimethyl-carbamic acid O-(2-substituted-methyl-pyrimidin-4-yl)-esters | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.