Hans List
78Patents
0Active
78Granted
39Portfolio score
Filing activity: Jun 5, 1974 → Dec 17, 1986
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4166967A | Piezoelectric resonator with acoustic reflectors | Physics | 151 | Expired |
| US4366040A | Capillary-reference electrode | Physics | 118 | Expired |
| US4413202A | Transducer with a flexible sensor element for measurement of mechanical values | Emerging Cross-Sectional Technologies | 60 | Expired |
| US4216403A | Monoaxially oriented piezoelectric polymer transducer for measurement of mechanical values on bodies | Emerging Cross-Sectional Technologies | 57 | Expired |
| US3978919A | Cooler-cum-blower assembly for internal combustion engines | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US4114714A | Motor vehicle having sound-suppressing engine enclosure | Performing Operations; Transporting | 40 | Expired |
| US4404854A | Transducer device for measuring mechanical values on hollow bodies | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4207843A | Compression ignition direct injection internal combustion engine | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4164262A | Motor vehicle | Performing Operations; Transporting | 33 | Expired |
| US4071008A | Low-noise-level internal combustion engine | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US4391147A | Transducer device for measuring mechanical values on hollow bodies | Emerging Cross-Sectional Technologies | 28 | Expired |
| US3951114A | Cooling of internal combustion engines with sound-proof encasings | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4186693A | Water-cooled internal combustion engine for motor vehicles, particularly a diesel engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4425800A | Means for ascertaining the internal pressure in a pressure pipe system | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4467271A | Test apparatus for determination of vibration characteristics of piezoelectric transducers | Physics | 17 | Expired |
| US3995603A | Cooler-cum-blower assembly for internal combustion engines | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4141427A | Motor vehicle with a noise suppressing engine encapsulation | Performing Operations; Transporting | 15 | Expired |
| US4203407A | Internal combustion engine with a sound-reducing encapsulation | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4203402A | Means for securing an injection nozzle | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4370957A | Assembly of auxiliary equipment for a water-cooled internal combustion engine | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US3964462A | Sound-proofed internal combustion engine | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US3949727A | Carburetor engine with sound-proof encasing | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US3964449A | Cooler-cum-blower assembly for internal combustion engines | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4216746A | Cylinder head for an air-cooled internal combustion engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4365593A | Water-cooled internal combustion engine | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.