Oppelt Arnulf
Ordidge Roger
Ordidge Roger J.
Orefice Thomas P.
Oshio Koichi
Osman Nael Fakhry
Ottenberg Karsten
Ouwerkerk Ronald
Overall William R.
Oxford Analytical Instruments Ltd.
Oxford Instruments Molecular Biotools Limited
Oxford Instruments Superconductivity Ltd.
Oxford Research Systems Limited
Pai Vinay Manjunath
Palazzolo Marino
Paley Martyn N. J.
Palmer Neil D.
Pan Jullie W.
Panacea Medical Laboratories
Panfil Shimon L.