Teijo Viljanen

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Kauniainen, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for wireless remote control
- Patent number 5,844,516
- Issue date Dec 1, 1998
- Oy Helvar
- Teijo Viljanen
- G08 - SIGNALLING
Information Patent Grant
Suppressor for an electronic ballast in a discharge lamp
- Patent number 5,698,950
- Issue date Dec 16, 1997
- Oy Helvar
- Teijo Viljanen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and circuit system for controlling a lighting electronics ap...
- Patent number 5,691,604
- Issue date Nov 25, 1997
- Oy Helvar
- Teijo Viljanen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Control device for an appliance consuming electric power
- Patent number 5,552,676
- Issue date Sep 3, 1996
- Oy Helvar
- Teijo Viljanen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR