Inventor · disambiguated record
Ernst Luhrsen
Also filed as: LUEHRSEN ERNST · LUHRSEN ERNST
27 granted patents·192 citations·filing 1978–1997
96Inventor score
Files withDIDIER WERKE AG27
Top patents by PatentIndex Score
27 records- 0180US4508324AFastening means for a closure plate on a sliding shutter outlet in a vessel which contains molten metalDIDIER WERKE AG·Filed 1983·Granted Apr 2, 1985·17 cites·27 claims
- 0274US5173199AApparatus for use in replacing a worn pouring pipe and for adjusting molten metal flow through a pouring pipeDIDIER WERKE AG·Filed 1991·Granted Dec 22, 1992·14 cites·27 claims
- 0372US5092500ARefractory discharge device with separate external reinforcement memberDIDIER WERKE AG·Filed 1991·Granted Mar 3, 1992·14 cites·20 claims
- 0471US4290589ATeeming pipe for use at the outlet of a melt containerDIDIER WERKE AG·Filed 1980·Granted Sep 22, 1981·12 cites·32 claims
- 0570US4949886AHorizontal or vertical rotary valve for a metallurgical vesselDIDIER WERKE AG·Filed 1988·Granted Aug 21, 1990·10 cites·32 claims
- 0670US4913324ARotary valve for a metallurgical vessel and rotor and stator thereforDIDIER WERKE AG·Filed 1988·Granted Apr 3, 1990·10 cites·43 claims
- 0768US5303905ARefractory ceramic stopper, apparatus for support thereof, and assembly thereofDIDIER WERKE AG·Filed 1992·Granted Apr 19, 1994·13 cites·65 claims
- 0868US4203538ARefractory spout brickDIDIER WERKE AG·Filed 1978·Granted May 20, 1980·9 cites·14 claims
- 0962US5429283AImmersion nozzle formed of separate membersDIDIER WERKE AG·Filed 1994·Granted Jul 4, 1995·10 cites·23 claims
- 1056US5173242AMeans and method for forming a sealed connectionDIDIER WERKE AG·Filed 1991·Granted Dec 22, 1992·7 cites·32 claims
- 1156US4268015ABottom outlet or discharge for use in metallurgical vessels for steel melts, particularly tundishesDIDIER WERKE AG·Filed 1979·Granted May 19, 1981·7 cites·8 claims
- 1254US5072864ACarbon-containing wearable refractory partsDIDIER WERKE AG·Filed 1990·Granted Dec 17, 1991·12 cites·21 claims
- 1353US5037017AHorizontal or vertical rotary valve for a metallurgical vesselDIDIER WERKE AG·Filed 1989·Granted Aug 6, 1991·5 cites·12 claims
- 1449US4634685ARefractory article suitable for casting molten metalDIDIER WERKE AG·Filed 1985·Granted Jan 6, 1987·6 cites·17 claims
- 1547US5413744AProcess for inductive heating of ceramic shaped partsDIDIER WERKE AG·Filed 1993·Granted May 9, 1995·5 cites·14 claims
- 1645US5942316AMulti-layer refractory wear bodyDIDIER WERKE AG·Filed 1997·Granted Aug 24, 1999·5 cites·7 claims
- 1741US5171495AImmersion nozzles for metal meltsDIDIER WERKE AG·Filed 1991·Granted Dec 15, 1992·6 cites·7 claims
- 1841US5025961ARefractory shutoff assembly capable of improved emergency closingDIDIER WERKE AG·Filed 1990·Granted Jun 25, 1991·4 cites·9 claims
- 1940US5190716AProcess for manufacturing and preheating a shaped ceramic partDIDIER WERKE AG·Filed 1991·Granted Mar 2, 1993·3 cites·16 claims
- 2036US4717128ARefractory plate assembly including wear and erosion resistant insert surrounded by plural component base structureDIDIER WERKE AG·Filed 1986·Granted Jan 5, 1988·10 cites·19 claims
- 2135US4923225AAssembly for connecting a metal member to a ceramic refractory memberDIDIER WERKE AG·Filed 1988·Granted May 8, 1990·6 cites·13 claims
- 2234US5657997AFixing device for a ceramic sealing plateDIDIER WERKE AG·Filed 1995·Granted Aug 19, 1997·1 cites·19 claims
- 2334US5083688ARotary valve for a metallurgical vessel and rotor and stator thereforDIDIER WERKE AG·Filed 1989·Granted Jan 28, 1992·1 cites·92 claims
- 2434US5058784AClosing and/or regulating apparatus for tapping molten metal from a metallurgical vesselDIDIER WERKE AG·Filed 1990·Granted Oct 22, 1991·2 cites·8 claims
- 2531US4994216AProcess of making carbon-bonded refractory shaped articlesDIDIER WERKE AG·Filed 1988·Granted Feb 19, 1991·3 cites·11 claims
- 2630US5106060AComponents for forming a closing and/or regulating apparatus for tapping molten metal from a metallurgical vesselDIDIER WERKE AG·Filed 1991·Granted Apr 21, 1992·0 cites·6 claims
- 2729US5080265AApparatus for closing and/or regulating the tapping of molten metalDIDIER WERKE AG·Filed 1990·Granted Jan 14, 1992·0 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →