Erkki Rajala

Person

Vassa, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Motorized change-over switch
- Patent number D571303
- Issue date Jun 17, 2008
- ABB Oy
- Timo Jokiniemi
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Switching device combination for capacitive loads connected to dire...
- Patent number 7,365,622
- Issue date Apr 29, 2008
- ABB Oy
- Risto Kajan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for limiting an electrical current
- Patent number 6,628,485
- Issue date Sep 30, 2003
- ABB Research Ltd.
- Erkki Rajala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Arrangement and method for an electric machine
- Patent number 6,555,984
- Issue date Apr 29, 2003
- ABB Oy
- Erkki Rajala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Monitor circuit for a current limiting device
- Patent number 6,492,799
- Issue date Dec 10, 2002
- ABB Research Ltd.
- Erkki Rajala
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical component with a constriction in a PTC polymer element
- Patent number 6,259,349
- Issue date Jul 10, 2001
- ABB Research Ltd.
- Ralf Strümpler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electronic auxiliary contact for a contactor
- Patent number 5,424,900
- Issue date Jun 13, 1995
- ABB Stromberg Kojeet Oy
- Esko Kiiskinen
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Switching device combination for capacitive loads connected to dire...
- Publication number 20070035909
- Publication date Feb 15, 2007
- Risto Kajan
- H01 - BASIC ELECTRIC ELEMENTS

Erkki Rajala

Person

Patents Grantslast 30 patents

Motorized change-over switch

Switching device combination for capacitive loads connected to dire...

Apparatus for limiting an electrical current

Arrangement and method for an electric machine

Monitor circuit for a current limiting device

Electrical component with a constriction in a PTC polymer element

Electronic auxiliary contact for a contactor

Patents Applicationslast 30 patents

Switching device combination for capacitive loads connected to dire...