Assignee
PENNSYLVANIA ENGINEERING CORP
US·60 granted patents·519 citations·filing 1972–1985
Top patents by PatentIndex Score
60 records- 0187US4612043ASteel making methodPENNSYLVANIA ENGINEERING CORP·Filed 1984·Granted Sep 16, 1986·25 cites·20 claims
- 0286US3998626AMethod for air pollution control combined with safe recovery and control of gases from a bottom-blown steel converter vesselPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Dec 21, 1976·15 cites·32 claims
- 0385US4575856AIron free self baking electrodePENNSYLVANIA ENGINEERING CORP·Filed 1984·Granted Mar 11, 1986·44 cites·17 claims
- 0483US4365992AMethod of treating ferrous metalPENNSYLVANIA ENGINEERING CORP·Filed 1981·Granted Dec 28, 1982·20 cites·13 claims
- 0583US4329171ASteel making methodPENNSYLVANIA ENGINEERING CORP·Filed 1981·Granted May 11, 1982·18 cites·1 claims
- 0681US4501599AMethod and apparatus for cleaning waste gases from aluminum production facilitiesPENNSYLVANIA ENGINEERING CORP·Filed 1983·Granted Feb 26, 1985·58 cites·14 claims
- 0779US3948644ASteel making vessel with dust recycling method and meansPENNSYLVANIA ENGINEERING CORP·Filed 1972·Granted Apr 6, 1976·26 cites·6 claims
- 0878US4611339AMethod and apparatus for removal of impure gases at time of scrap preheatingPENNSYLVANIA ENGINEERING CORP·Filed 1983·Granted Sep 9, 1986·14 cites·9 claims
- 0976US4049246ABumper guard for steel converting apparatus enclosurePENNSYLVANIA ENGINEERING CORP·Filed 1976·Granted Sep 20, 1977·10 cites·11 claims
- 1075US4449701ATuyere for the injection of gases into a metallurgical vesselPENNSYLVANIA ENGINEERING CORP·Filed 1982·Granted May 22, 1984·13 cites·7 claims
- 1173US4302244ASteel conversion methodPENNSYLVANIA ENGINEERING CORP·Filed 1980·Granted Nov 24, 1981·11 cites·13 claims
- 1269US4128232ACooling assembly for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Dec 5, 1978·7 cites·11 claims
- 1366US4497656ASteel making methodPENNSYLVANIA ENGINEERING CORP·Filed 1982·Granted Feb 5, 1985·9 cites·2 claims
- 1466US4191364ASupport for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1978·Granted Mar 4, 1980·7 cites·13 claims
- 1565US4249952AMethod for producing cement clinker from cement kiln waste dustPENNSYLVANIA ENGINEERING CORP·Filed 1980·Granted Feb 10, 1981·12 cites·9 claims
- 1663US4284266AMetallurgical vessel capable of receiving fluids in separate flow paths while pivotingPENNSYLVANIA ENGINEERING CORP·Filed 1980·Granted Aug 18, 1981·7 cites·12 claims
- 1762US4405365AMethod for the fabrication of special steels in metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1982·Granted Sep 20, 1983·14 cites·3 claims
- 1861US4483709ASteel production methodPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Nov 20, 1984·12 cites·19 claims
- 1959US4272286AMetallurgical vesselPENNSYLVANIA ENGINEERING CORP·Filed 1979·Granted Jun 9, 1981·5 cites·4 claims
- 2058US4081269AGas cleaning system for metallurgical apparatusPENNSYLVANIA ENGINEERING CORP·Filed 1976·Granted Mar 28, 1978·11 cites·5 claims
- 2157US4139368AMetallurgical methodPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Feb 13, 1979·5 cites·3 claims
- 2257US3963222AGas collecting hood for metallurgical vesselPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Jun 15, 1976·5 cites·12 claims
- 2357US3951390AThrust bearing device for metal treating vesselPENNSYLVANIA ENGINEERING CORP·Filed 1974·Granted Apr 20, 1976·10 cites·10 claims
- 2456US4260141ACenterplate wear linersPENNSYLVANIA ENGINEERING CORP·Filed 1979·Granted Apr 7, 1981·6 cites·11 claims
- 2556US4055335ATransformation of top-blown steel converter vessel to bottom-blown typePENNSYLVANIA ENGINEERING CORP·Filed 1974·Granted Oct 25, 1977·8 cites·2 claims
- 2656US4036481ASteel converter vessel tuyere block constructionPENNSYLVANIA ENGINEERING CORP·Filed 1973·Granted Jul 19, 1977·6 cites·8 claims
- 2754US4426069AMettalurgical vessel suspension systemPENNSYLVANIA ENGINEERING CORP·Filed 1982·Granted Jan 17, 1984·5 cites·15 claims
- 2852US4168824AEnclosure for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Sep 25, 1979·4 cites·15 claims
- 2952US4032119ALance seal for converter vessel gas collecting hoodPENNSYLVANIA ENGINEERING CORP·Filed 1976·Granted Jun 28, 1977·4 cites·27 claims
- 3051US4050682AMethod and apparatus for handling off-gases from metal refining vesselPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Sep 27, 1977·10 cites·23 claims
- 3148US4436291AMetallurgical vessel suspension systemPENNSYLVANIA ENGINEERING CORP·Filed 1982·Granted Mar 13, 1984·4 cites·5 claims
- 3248US4273316AMetallurgical vessel suspension systemPENNSYLVANIA ENGINEERING CORP·Filed 1979·Granted Jun 16, 1981·3 cites·12 claims
- 3348US3944083ABottom handling apparatus for steel converter vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1974·Granted Mar 16, 1976·6 cites·23 claims
- 3447US4526352ADeslagging rakePENNSYLVANIA ENGINEERING CORP·Filed 1984·Granted Jul 2, 1985·6 cites·7 claims
- 3547US4241902ASystem for vessel exchangePENNSYLVANIA ENGINEERING CORP·Filed 1979·Granted Dec 30, 1980·3 cites·20 claims
- 3647US4094496AEnclosure for steel converting apparatusPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Jun 13, 1978·6 cites·2 claims
- 3746US4121811AMetallurgical vessel suspension systemPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Oct 24, 1978·3 cites·8 claims
- 3845US4653064AGas collector for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1985·Granted Mar 24, 1987·6 cites·7 claims
- 3945US4646315AArc furnace burner control method and apparatusPENNSYLVANIA ENGINEERING CORP·Filed 1984·Granted Feb 24, 1987·11 cites·23 claims
- 4045US4123043AGas cleaning system for metallurgical apparatusPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Oct 31, 1978·3 cites·10 claims
- 4142US4123042ASteel converter vessel tuyere block constructionPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Oct 31, 1978·2 cites·4 claims
- 4242US4061318AMetallurgical vesselPENNSYLVANIA ENGINEERING CORP·Filed 1976·Granted Dec 6, 1977·3 cites·19 claims
- 4341US4410166AGas collector for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1981·Granted Oct 18, 1983·6 cites·3 claims
- 4441US4352486APressure probe for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1981·Granted Oct 5, 1982·4 cites·4 claims
- 4541US4275871AMetallurgical vessel and supporting meansPENNSYLVANIA ENGINEERING CORP·Filed 1980·Granted Jun 30, 1981·3 cites·10 claims
- 4641US4085924ACooling assembly for metallurgical vesselsPENNSYLVANIA ENGINEERING CORP·Filed 1977·Granted Apr 25, 1978·3 cites·10 claims
- 4740US4076223AEnclosure for steel converting apparatusPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Feb 28, 1978·5 cites·9 claims
- 4839US4492567AMethod of removal of impure gases at the time of scrap preheating, and equipment for use of samePENNSYLVANIA ENGINEERING CORP·Filed 1983·Granted Jan 8, 1985·2 cites·5 claims
- 4939US4097029AEnclosure for steel converting apparatusPENNSYLVANIA ENGINEERING CORP·Filed 1975·Granted Jun 27, 1978·5 cites·19 claims
- 5038US4485841APollution control devicePENNSYLVANIA ENGINEERING CORP·Filed 1983·Granted Dec 4, 1984·6 cites·10 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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