OB

Otmar Birkner

Overall (All Time): #1,162,106 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10526084 Autogyro 2020-01-07
9868507 Aircraft having keel tube with structure that reduces noise emissions Gerhard Meier 2018-01-16
8690100 Gyroplane 2014-04-08
D699153 Autogyro 2014-02-11