Hanspeter Schad
15Patents
9h-index
44Co-inventors
72Inventor score
Filing activity: Jul 14, 1981 → Jan 19, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4492432A | Homeotropic nematic display with internal reflector | Physics | 61 | Expired |
| US6044918A | Percussion blow added manually operable drilling tool | Performing Operations; Transporting | 43 | Expired |
| US5308973A | Method and device for the measurement of force by a fiber optics system by evaluating phase shift of light waves | Physics | 27 | Expired |
| US4812635A | Optoelectronic displacement sensor with correction filter | Physics | 19 | Expired |
| US5317147A | Method and apparatus for absolute measurement of force by use of polarized, non-coherent light and compensation of strain-induced birefringence effects in a single mode-fiber optic waveguide | Physics | 19 | Expired |
| US6799644B2 | Pneumatic percussive mechanism | Performing Operations; Transporting | 18 | Expired |
| US5806609A | Manually operable tool for drilling and/or removing material in brittle and/or low ductile material | Performing Operations; Transporting | 18 | Expired |
| US4804264A | Arrangement for time-resolved optical backscatter measurement at optical waveguides | Physics | 15 | Expired |
| US6981625B2 | Percussive electrical hand-held power tool | Performing Operations; Transporting | 9 | Expired |
| US9259830B2 | Striking mechanism and hand-held power tool | Performing Operations; Transporting | 9 | Active |
| US6640914B2 | Percussion borer for forming bores in stone material | Fixed Constructions | 7 | Expired |
| US6557653B2 | Working tool for a percussion power tool | Fixed Constructions | 6 | Expired |
| US5921733A | Self-cutting undercutting dowel | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US7055633B2 | Concrete drill | Performing Operations; Transporting | 4 | Expired |
| US4864522A | Process for the sampling of an electric signal varying over time and apparatus for the implementation and application of this process | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.