Inventor
JOHNSON D EMIL
6 patents
Patents
6 patentsUS4424287AJan 3, 1984
Polymer foam process
MOBIL OIL CORP144 citations95
US4344710AAug 17, 1982
Polymer foam extrusion system
MOBIL OIL CORP100 citations94
US4470938ASep 11, 1984
Method and apparatus for extrusion of thermoplastic foam
MOBIL OIL CORP51 citations90
US4842788AJun 27, 1989
Process of an apparatus for extruding a meltable composition
MOBIL OIL CORP19 citations71
US4832889AMay 23, 1989
Vaulted screw/grooved barrel extrusion machine, method and system
MOBIL OIL CORP11 citations71
US4352893AOct 5, 1982
Production of foamed polymer
MOBIL OIL CORP6 citations60