Hans Bieri
19Patents
7h-index
5Co-inventors
59Inventor score
Filing activity: Aug 7, 1975 → Apr 27, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4557245A | Concrete cutting or milling apparatus including a guide rail | Performing Operations; Transporting | 26 | Expired |
| US8790447B2 | Separation device for removing liquid from a mixture comprising a gas and liquid | Performing Operations; Transporting | 21 | Active |
| US5201638A | Hydraulic energy supply cart | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4385538A | Shearing device for cutting bar-shaped stock such as rolled steel billets | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5186157A | Guide and support structure for surface cutting apparatus | Performing Operations; Transporting | 10 | Expired |
| US4043311A | Jig saw blade with cooling channel | Performing Operations; Transporting | 10 | Expired |
| US5653509A | Blockage-protected drive system with a centrifugal clutch, and sawing apparatus driven through said clutch | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4013133A | Apparatus with a motor-driven material removing tool, especially for cutting concrete, stone or the like | Performing Operations; Transporting | 7 | Expired |
| US4923344A | Coupling system for boring tools | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4572580A | Mobile concrete or rock cutting apparatus | Fixed Constructions | 7 | Expired |
| US5180209A | Apparatus for cutting recessed grooves into concrete and rock material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4964434A | Dual control valve suitable for high pressure fluids | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6920871B2 | Cable saw | Emerging Cross-Sectional Technologies | 5 | Expired |
| US3982521A | Heavy duty jig saw | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4178991A | Heat exchanger and a heat exchanger element therefor | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4026602A | Apparatus for mechanically breaking up stone or reinforced concrete | Fixed Constructions | 3 | Expired |
| US4932597A | Concrete plate, panel, wall or flooring demolition apparatus | Fixed Constructions | 3 | Expired |
| US4055353A | Clamping device, especially for rock or concrete drills | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4475423A | Shear for cutting rod-form material | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.