Inventor · disambiguated record
Wilhelm Langenfeld
Also filed as: LANGENFELD WILHELM
4 granted patents·35 citations·filing 1976–1989
74Inventor score
Files withDIDIER WERKE AG4
Top patents by PatentIndex Score
4 records- 0174US4331471AMethod and device for installing and replacing a gas permeable insert in the wall of a vessel and for the introduction of gas therethroughDIDIER WERKE AG·Filed 1981·Granted May 25, 1982·12 cites·54 claims
- 0263US4984769ATap spout for metallurgical vessels and method of repairingDIDIER WERKE AG·Filed 1989·Granted Jan 15, 1991·14 cites·21 claims
- 0354US4522376AGas flushing inlet arrangement in a metallurgical vessel and method of operation of such an arrangementDIDIER WERKE AG·Filed 1984·Granted Jun 11, 1985·7 cites·21 claims
- 0428US4022445AConverter bottom structureDIDIER WERKE AG·Filed 1976·Granted May 10, 1977·2 cites·10 claims
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