Inventor · disambiguated record

Eugen R. Werlein

Also filed as: WERLEIN EUGEN R

1 granted patent·12 citations·filing 1989–1989

34Inventor score

Technology areasC09K

Files withEXXON RESEARCH ENGINEERING CO1

Top patents by PatentIndex Score

1 record

0152US4978461ALow and high temperature drilling fluids based on sulfonated terpolymer ionomersEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Dec 18, 1990·12 cites·14 claims

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