Jaakko Hämäläinen

Follow

Person

Tampere, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Valve of a hydraulically striking device
- Patent number 10,508,749
- Issue date Dec 17, 2019
- Doofor Oy
- Jaakko Hämäläinen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Valve of a hydraulically striking device
- Patent number 9,863,547
- Issue date Jan 9, 2018
- Doofor Oy
- Jaakko Hämäläinen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
Valve of a Hydraulically Striking Device
- Publication number 20160138728
- Publication date May 19, 2016
- Doofor Oy
- Jaakko Hämäläinen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Valve of a Hydraulically Striking Device
- Publication number 20160053908
- Publication date Feb 25, 2016
- Doofor Oy
- Jaakko Hämäläinen
- E21 - EARTH DRILLING MINING
Information Patent Application
Hydraulically Striking Device
- Publication number 20160053541
- Publication date Feb 25, 2016
- Doofor Oy
- Jaakko Hämäläinen
- E21 - EARTH DRILLING MINING