Philp Sanborn F
Phmi Tadahiro
Photo-Catalytics, Inc.
Piret James M.
Plummer Robert L.
Powell Anthony L.
Pratt W. Robert
Proksch Emil
Przybilla Karl
Przybylski Aleksander
PTS Gesellschaft fuer Physikalisch-Technische Studien Jena mbH
Pupunat Laurent
PurePise Technologies, Inc.
Purific Environmental Technologies, Inc.
Purifics Environmental Technologies, Inc.
Radical Waters IP (Pty) Limited
Raghavarao Karumanchi S. M. S.
Rajachandran Madhan
Rasmussen Paul Warren
Rau Christopher