Inventor

WISAKANTO RISTO

SE5 patents

⚠️ This page may combine multiple inventors who share the name “WISAKANTO RISTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TAMPELLA OY AB

2 patents

US4702621AOct 27, 1987

Bearing arrangement for a feeding device for a drilling machine

TAMPELLA OY AB18 citations70

US4979575ADec 25, 1990

Method of drilling a hole-in a rock

TAMPELLA OY AB11 citations67

WINROCK TECH LTD OY

1 patent

US5823274AOct 20, 1998

Drill rod

WINROCK TECH LTD OY19 citations73

WEDDFELT KENNETH

1 patent

US8770313B2Jul 8, 2014

Impulse generator, hydraulic impulse tool and method for producing impulses

WEDDFELT KENNETH5 citations62

(unassigned)

1 patent

US5524717AJun 11, 1996

Method of using a pressurized medium in drilling

0 citations32