Inventor
BIERI HANS
CH18 patents
⚠️ This page may combine multiple inventors who share the name “BIERI HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYDROSTRESS AG
9 patentsUS5201638AApr 13, 1993
Hydraulic energy supply cart
HYDROSTRESS AG28 citations92
US4557245ADec 10, 1985
Concrete cutting or milling apparatus including a guide rail
HYDROSTRESS AG44 citations92
US5186157AFeb 16, 1993
Guide and support structure for surface cutting apparatus
HYDROSTRESS AG11 citations73
US5180209AJan 19, 1993
Apparatus for cutting recessed grooves into concrete and rock material
HYDROSTRESS AG11 citations73
US4964434AOct 23, 1990
Dual control valve suitable for high pressure fluids
HYDROSTRESS AG11 citations73
US4923344AMay 8, 1990
Coupling system for boring tools
HYDROSTRESS AG16 citations73
US4572580AFeb 25, 1986
Mobile concrete or rock cutting apparatus
HYDROSTRESS AG10 citations73
US4932597AJun 12, 1990
Concrete plate, panel, wall or flooring demolition apparatus
HYDROSTRESS AG5 citations62
US4055353AOct 25, 1977
Clamping device, especially for rock or concrete drills
HYDROSTRESS AG4 citations62
BIERI HANS
4 patentsUS8790447B2Jul 29, 2014
Separation device for removing liquid from a mixture comprising a gas and liquid
BIERI HANS22 citations88
US4043311AAug 23, 1977
Jig saw blade with cooling channel
BIERI HANS27 citations81
US4013133AMar 22, 1977
Apparatus with a motor-driven material removing tool, especially for cutting concrete, stone or the like
BIERI HANS13 citations72
US3982521ASep 28, 1976
Heavy duty jig saw
BIERI HANS14 citations72