Inventor
VON-ARNDT ERNST-MORITZ
DE4 patents
Patents
4 patentsUS5507505AApr 16, 1996
Rod or piston seal with grooved surface
FREUDENBERG CARL FA46 citations93
US5630980AMay 20, 1997
Process of making a seal with grooved surface
FREUDENBERG CARL FA6 citations71
US5679838AOct 21, 1997
Prevention of or reduction in the formation of amines and N-nitrosamines during the manufacture and use of elastomers
FREUDENBERG CARL FA2 citations60
US5658990AAug 19, 1997
Prevention of or reduction in the formation of amines and N-nitrosamines during the manufacture and use of elastomers
FREUDENBERG CARL FA2 citations60