Opto Tech University
Opto-Device Co., Ltd.
Optoelectronics Technology Research Laboratory
OptoGaN Oy
Optolum, INC
Optolum, Inc.
OptoLynx, Inc.
Optotechno Co., Ltd.
Oram GmbH
Orchard-Webb Jonathan H.
Orfila Pierre-Francois
Orfila Pierre-François
Organet Chemical Co., Ltd.
Organic Vision Inc.
Orikawa Kouhei
Oritz Edgardo
Orizt Edgardo
Ormerod Simon
Orminston & McKinney, PLLC
Ormiston Steven R.