Leo M. Karkkainen

City:

Helsinki

Country:

Finland

Published Applications:

Last publication date:

2016-06-23

Top Assignees for applications by Leo M. Karkkainen

The entities that hold a legal rights for patent applications filed by inventor Karkkainen Leo M.:

Leo M. Karkkainen from Helsinki, FI has applied for patents for these inventions. The list has both pending applications and granted patents:

Method and apparatus for providing virtual audio reproduction

Speaker Apparatus in a Wireless Communication Device

Hand-held electronic device

InventorID:

1574469 ⎘