Oie Naoyuki
Oigo Ei
Okada Munehisa
Okamoto Tsuneo
Olavson Lars G.
Oliker Michael D.
Oliphant Kenward S.
Oliveau Olivier
Olney Richard A.
Omori Kanako
On Site Gas Systems, Inc.
Onozaki Masaki
Onushco Andrew J.
Ordines Jean-Pierre
Orel Jeannette V.
Osaka Oxygen Industries Ltd.
Osborn Jack
Osborn James G.
Othmer Donald F.
Ottar Brynjulf