O'Leary Mark D.
Oberle Rainer
Ochs Markus
Octrooibureau Zuid
Odin Foam Company
Odom Paul
Oestmann Eldon D.
Ogasawara Naoto
Ogino Kouichiro
Oguri Akira
Ohkawa Hisao
Ohki Kazumi
Ohlandt, Greeley, Ruggiero & Perle, LLC
Ohlhausen Manfred
Ohnuma Kiyoshi
Ohtaki Mitsuro
Ok Yeo Chong
Okada Hiedeaki
Okada Mituhiko
Okubo Manoru