David WICKSTROM

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Sandviken, SE

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Patents Grantslast 30 patents

Information Patent Grant
Drill rod or adaptor with strengthened spigot coupling
- Patent number 11,162,619
- Issue date Nov 2, 2021
- Sandvik Intellectual Property AB
- Petri Ahola
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Threaded coupling end for a percussion drill string component
- Patent number 10,627,023
- Issue date Apr 21, 2020
- Sandvik Intellectual Property AB
- David Wickström
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DRILL BIT WITH CURVED SLUDGE GROOVES
- Publication number 20210238927
- Publication date Aug 5, 2021
- John HAMMARGREN
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILL ROD OR ADAPTOR WITH STRENGTHENED SPIGOT COUPLING
- Publication number 20180135782
- Publication date May 17, 2018
- Sandvik Intellectual Property AB
- PETRI AHOLA
- E21 - EARTH DRILLING MINING
Information Patent Application
THREADED COUPLING END FOR A PERCUSSION DRILL STRING COMPONENT
- Publication number 20180135783
- Publication date May 17, 2018
- DAVID WICKSTRÖM
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILL STRING ROD WITH GUIDANCE SHOULDER
- Publication number 20170321496
- Publication date Nov 9, 2017
- Sandvik Intellectual Property AB
- Per MATTSON
- E21 - EARTH DRILLING MINING