Inventor · disambiguated record

Karl-Friedrich Zenner

Also filed as: ZENNER KARL-FRIEDRICH

2 granted patents·37 citations·filing 1973–1974

63Inventor score

Technology areasB01J C01B

Files withBAYER AG2

Top patents by PatentIndex Score

2 records

0172US3954567AEvaporating solutions which contain phosgene in a vacuum liquid ring pumpBAYER AG·Filed 1973·Granted May 4, 1976·19 cites·5 claims
0263US3947484AContinuous prephosgenation process for the production of organic isocyanatesBAYER AG·Filed 1974·Granted Mar 30, 1976·18 cites·5 claims

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