Yrjö-Sakari MATIKAINEN

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Patents Grantslast 30 patents

Information Patent Grant
Optical device for modifying light distribution
- Patent number 11,555,989
- Issue date Jan 17, 2023
- Ledil Oy
- Yrjö-Sakari Matikainen
- F21 - LIGHTING
Information Patent Grant
Optical device for modifying light distribution
- Patent number 11,525,987
- Issue date Dec 13, 2022
- Ledil Oy
- Yrjö-Sakari Matikainen
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
AN OPTICAL DEVICE FOR MODIFYING LIGHT DISTRIBUTION
- Publication number 20210396980
- Publication date Dec 23, 2021
- LEDIL OY
- Yrjö-Sakari MATIKAINEN
- F21 - LIGHTING
Information Patent Application
AN OPTICAL DEVICE FOR MODIFYING LIGHT DISTRIBUTION
- Publication number 20210003266
- Publication date Jan 7, 2021
- LEDIL OY
- Yrjö-Sakari MATIKAINEN
- C03 - GLASS MINERAL OR SLAG WOOL