Assignee
HOOGOVENS GROEP BV
NL·92 granted patents·1,041 citations·filing 1982–1997
Top patents by PatentIndex Score
92 records- 0190US5052922ACeramic gas burner for a hot blast stove, and bricks thereforHOOGOVENS GROEP BV·Filed 1990·Granted Oct 1, 1991·95 cites·19 claims
- 0284US4521117AArrangement for mixing a gas into a main flow of a second gasHOOGOVENS GROEP BV·Filed 1984·Granted Jun 4, 1985·59 cites·6 claims
- 0382US4981590AComposite ceramic micropermeable membrane, process and apparatus for producing such membraneHOOGOVENS GROEP BV·Filed 1988·Granted Jan 1, 1991·35 cites·6 claims
- 0480US4793247AMethod of mixing two or more gas flowsHOOGOVENS GROEP BV·Filed 1987·Granted Dec 27, 1988·67 cites·11 claims
- 0579US5352278AMarking powder for and method of marking a metallic articleHOOGOVENS GROEP BV·Filed 1993·Granted Oct 4, 1994·34 cites·11 claims
- 0679US4582454AApparatus and method for feeding pulverized coal into an air line to a blast furnaceHOOGOVENS GROEP BV·Filed 1983·Granted Apr 15, 1986·37 cites·5 claims
- 0778US5009396AMethod and apparatus for the manufacture of formable steel stripHOOGOVENS GROEP BV·Filed 1989·Granted Apr 23, 1991·15 cites·3 claims
- 0877US4510793AMethod of monitoring the wear of a refractory lining of a metallurgical furnace wallHOOGOVENS GROEP BV·Filed 1983·Granted Apr 16, 1985·32 cites·7 claims
- 0975US5127695AApparatus for manipulating a palletHOOGOVENS GROEP BV·Filed 1990·Granted Jul 7, 1992·40 cites·16 claims
- 1072US4885041AMethod for the manufacture of formable steel stripHOOGOVENS GROEP BV·Filed 1988·Granted Dec 5, 1989·13 cites·22 claims
- 1172US4789439AMethod of electrolytic tinning using an insoluble anodeHOOGOVENS GROEP BV·Filed 1987·Granted Dec 6, 1988·22 cites·5 claims
- 1268US5129631AHandling molten materialsHOOGOVENS GROEP BV·Filed 1991·Granted Jul 14, 1992·11 cites·12 claims
- 1368US5089299AComposite ceramic micropermeable membrane, process and apparatus for producing such membraneHOOGOVENS GROEP BV·Filed 1990·Granted Feb 18, 1992·24 cites·9 claims
- 1468US4881394AMethod and apparatus for ironing the wall of a one-piece cylindrical bodyHOOGOVENS GROEP BV·Filed 1988·Granted Nov 21, 1989·23 cites·17 claims
- 1568US4576081ACeramic sealing ropeHOOGOVENS GROEP BV·Filed 1984·Granted Mar 18, 1986·24 cites·7 claims
- 1667US4787605ACoolable furnace wall structureHOOGOVENS GROEP BV·Filed 1987·Granted Nov 29, 1988·21 cites·12 claims
- 1767US4698103AMethod of manufacturing dual phase strip steel and steel strip manufactured by the methodHOOGOVENS GROEP BV·Filed 1986·Granted Oct 6, 1987·15 cites·18 claims
- 1866US5303766AApparatus and method for the manufacture of hot-rolled steelHOOGOVENS GROEP BV·Filed 1992·Granted Apr 19, 1994·16 cites·25 claims
- 1966US4535975AGas-transmitting wall element for a metallurgical vessel, a metallurgical vessel having such a wall element, and a method of producing steelHOOGOVENS GROEP BV·Filed 1982·Granted Aug 20, 1985·7 cites·9 claims
- 2063US4838955AMethod for the manufacture of hard steel sheet from Al-killed continuous-cast carbon-manganese steelHOOGOVENS GROEP BV·Filed 1987·Granted Jun 13, 1989·14 cites·5 claims
- 2162US5186018ACooling system for cooling a moving metal stripHOOGOVENS GROEP BV·Filed 1991·Granted Feb 16, 1993·15 cites·5 claims
- 2262US5173168AMethod of making iron foil by electrodepositionHOOGOVENS GROEP BV·Filed 1992·Granted Dec 22, 1992·16 cites·8 claims
- 2361US5042564AMethod for the manufacture of formable steelHOOGOVENS GROEP BV·Filed 1989·Granted Aug 27, 1991·10 cites·16 claims
- 2461US4900406AMethod of electrolytic metal coating of a strip-shape metal substrate and apparatus for carrying out the methodHOOGOVENS GROEP BV·Filed 1989·Granted Feb 13, 1990·14 cites·11 claims
- 2561US4619441AShaft furnace having a metal shell, a refractory lining and cooling bodies projecting through the shell into the liningHOOGOVENS GROEP BV·Filed 1984·Granted Oct 28, 1986·9 cites·10 claims
- 2656US5358223AHot-blast main for hot-blast stove system of a blast furnaceHOOGOVENS GROEP BV·Filed 1993·Granted Oct 25, 1994·12 cites·6 claims
- 2755US4623561AMethod of marking a hot steel slabHOOGOVENS GROEP BV·Filed 1985·Granted Nov 18, 1986·11 cites·6 claims
- 2854US5170049ACoating thickness gauge using linearly polarized lightHOOGOVENS GROEP BV·Filed 1989·Granted Dec 8, 1992·22 cites·12 claims
- 2954US5031882AChannel structure for flow of molten pig ironHOOGOVENS GROEP BV·Filed 1990·Granted Jul 16, 1991·11 cites·13 claims
- 3053US4565525ATaphole construction of a shaft furnaceHOOGOVENS GROEP BV·Filed 1984·Granted Jan 21, 1986·10 cites·11 claims
- 3153US4524954AMethod of operating a mixer type hot metal car for the transport of molten iron and a device for carrying out the methodHOOGOVENS GROEP BV·Filed 1983·Granted Jun 25, 1985·9 cites·6 claims
- 3252US4985090ANon-ageing low-alloy hot-rolled strip-form formable steelHOOGOVENS GROEP BV·Filed 1990·Granted Jan 15, 1991·11 cites·3 claims
- 3350US4912954AMethod of rolling strip in a rolling mill and a control system thereforHOOGOVENS GROEP BV·Filed 1988·Granted Apr 3, 1990·11 cites·8 claims
- 3450US4728440AApparatus and method for removing a liquid from a mixture of liquidsHOOGOVENS GROEP BV·Filed 1986·Granted Mar 1, 1988·17 cites·12 claims
- 3550US4527409AProcess of hot-rolling steel using a heat-reflecting screenHOOGOVENS GROEP BV·Filed 1983·Granted Jul 9, 1985·8 cites·5 claims
- 3649US4826139AStopper for a tap hole of a steel converter and method of operating a converterHOOGOVENS GROEP BV·Filed 1987·Granted May 2, 1989·8 cites·5 claims
- 3748US4681237AMethod for the manufacture of metal packaging cans, and a semi-product in the manufacture of such cansHOOGOVENS GROEP BV·Filed 1984·Granted Jul 21, 1987·15 cites·3 claims
- 3847US4881895ACeramic gas burner for a combustion chamber of a hot-blast stoveHOOGOVENS GROEP BV·Filed 1988·Granted Nov 21, 1989·6 cites·4 claims
- 3946US5375817AHot blast stove and method for constructing a hot blast stoveHOOGOVENS GROEP BV·Filed 1994·Granted Dec 27, 1994·7 cites·5 claims
- 4043US4854946AMethod for treating blast furnace gas and apparatus for carrying out that methodHOOGOVENS GROEP BV·Filed 1984·Granted Aug 8, 1989·11 cites·13 claims
- 4142US5020992AShaft furnaceHOOGOVENS GROEP BV·Filed 1990·Granted Jun 4, 1991·7 cites·11 claims
- 4241US4919273AApparatus for sorting metal bars by lengthHOOGOVENS GROEP BV·Filed 1989·Granted Apr 24, 1990·12 cites·10 claims
- 4340US4443252AProcess for producing steel in a converter from pig iron and ferrous scrapHOOGOVENS GROEP BV·Filed 1983·Granted Apr 17, 1984·3 cites·9 claims
- 4439US5833778AApparatus and method for the manufacture of DR steel stripHOOGOVENS GROEP BV·Filed 1997·Granted Nov 10, 1998·4 cites·10 claims
- 4539US4569508AMetallurgical vessel having an opening and a flange around the openingHOOGOVENS GROEP BV·Filed 1984·Granted Feb 11, 1986·6 cites·5 claims
- 4638US5354522AMethod of bending a laminate having a thermoplastic core layer and metal sheets on each sideHOOGOVENS GROEP BV·Filed 1993·Granted Oct 11, 1994·17 cites·8 claims
- 4738US4863378ACeramic burner for a hot-blast stoveHOOGOVENS GROEP BV·Filed 1988·Granted Sep 5, 1989·3 cites·3 claims
- 4837US4643403ALiquid-cooled lance for blowing oxygen onto a steel bath and method of operating the lanceHOOGOVENS GROEP BV·Filed 1985·Granted Feb 17, 1987·5 cites·7 claims
- 4937US4643803AMethod of making coke in a coke oven batteryHOOGOVENS GROEP BV·Filed 1984·Granted Feb 17, 1987·3 cites·5 claims
- 5035US5088695AIron runnerHOOGOVENS GROEP BV·Filed 1991·Granted Feb 18, 1992·2 cites·2 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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