Parker Roger A.
Parkinson Jeff K.
Paulasaari Jyri Kalevi
Pawlak Joseph M
Peng Wenqing
Perez Erik W.
Perez Juan Campora
Periana Roy A.
Peschanel Birgit
Petersen Herman
Peterson, Jr. William R.
Petrarch Systems
Petty Herbert E.
Pfeiffer Jürgen
Pfister Joerg
Pharmachemie B.V.
Phoenix Chem.
Phoenix Chemical
Phoenix Research Co.
Phoenix Research Corp.