John Hammargren

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Ockelbo, SE

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Patents Grantslast 30 patents

Information Patent Grant
Percussive rock drill bit with flushing grooves
- Patent number 10,626,680
- Issue date Apr 21, 2020
- Sandvik Intellectual Property AB
- Andreas Rindeskar
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit for rock drilling tool, and rock drilling tool
- Patent number 9,797,202
- Issue date Oct 24, 2017
- Sandvik Intellectual Property AB
- Andreas Rindeskar
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drill bit for percussive drilling
- Patent number D705827
- Issue date May 27, 2014
- Sandvik Intellectual Property AB
- John Hammargren
- D15 - Machines not elsewhere specified

Patents Applicationslast 30 patents

Information Patent Application
CONNECTION FOR PERCUSSION DRILLING
- Publication number 20200408048
- Publication date Dec 31, 2020
- SANDVIK MINING AND CONSTRUCTION TOOLS AB
- John HAMMARGREN
- E21 - EARTH DRILLING MINING
Information Patent Application
PERCUSSIVE ROCK DRILL BIT WITH FLUSHING GROOVES
- Publication number 20160348442
- Publication date Dec 1, 2016
- Sandvik Intellectual Property AB
- Andreas Rindeskar
- E21 - EARTH DRILLING MINING
Information Patent Application
DRILL BIT FOR ROCK DRILLING TOOL, AND ROCK DRILLING TOOL
- Publication number 20140299388
- Publication date Oct 9, 2014
- Sandvik Intellectual Property AB
- Andreas Rindeskar
- E21 - EARTH DRILLING MINING