Jesper CALPSON

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Ludvika, SE

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Patents Grantslast 30 patents

Information Patent Grant
Draw-rod bushing with sealed bottom contact
- Patent number 12,142,392
- Issue date Nov 12, 2024
- HITACHI ENERGY LTD
- Fredrik Graas
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
DRAW-ROD BUSHING WITH SEALED BOTTOM CONTACT
- Publication number 20220293302
- Publication date Sep 15, 2022
- Hitachi Energy Switzerland AG
- Fredrik GRAAS
- H01 - BASIC ELECTRIC ELEMENTS