Assignee
ALLEGHENY LUDLUM IND INC
85 granted patents·924 citations·filing 1974–1979
Top patents by PatentIndex Score
85 records- 0190US3953194AProcess for reclaiming cemented metal carbideALLEGHENY LUDLUM IND INC·Filed 1975·Granted Apr 27, 1976·50 cites·19 claims
- 0287US4099966AAustenitic stainless steelALLEGHENY LUDLUM IND INC·Filed 1976·Granted Jul 11, 1978·35 cites·15 claims
- 0386US4049372AApparatus for supporting and removing a work supporting rollALLEGHENY LUDLUM IND INC·Filed 1976·Granted Sep 20, 1977·23 cites·9 claims
- 0482US4014680APrealloyed stainless steel powder for liquid phase sinteringALLEGHENY LUDLUM IND INC·Filed 1976·Granted Mar 29, 1977·23 cites·4 claims
- 0582US4007038APitting resistant stainless steel alloy having improved hot-working characteristicsALLEGHENY LUDLUM IND INC·Filed 1975·Granted Feb 8, 1977·20 cites·4 claims
- 0682US3943010AProcess for producing austenitic ferrous alloysALLEGHENY LUDLUM IND INC·Filed 1974·Granted Mar 9, 1976·22 cites·3 claims
- 0779US3993445ASintered ferritic stainless steelALLEGHENY LUDLUM IND INC·Filed 1974·Granted Nov 23, 1976·18 cites·7 claims
- 0878US3953201AFerritic stainless steelALLEGHENY LUDLUM IND INC·Filed 1974·Granted Apr 27, 1976·19 cites·18 claims
- 0977US4238122AApparatus for annealing steelALLEGHENY LUDLUM IND INC·Filed 1979·Granted Dec 9, 1980·18 cites·2 claims
- 1077US4030950AProcess for cube-on-edge oriented boron-bearing silicon steel including normalizingALLEGHENY LUDLUM IND INC·Filed 1976·Granted Jun 21, 1977·17 cites·12 claims
- 1177US3980444ASintered liquid phase stainless steelALLEGHENY LUDLUM IND INC·Filed 1975·Granted Sep 14, 1976·20 cites·5 claims
- 1276US4006012AAustenitic alloyALLEGHENY LUDLUM IND INC·Filed 1975·Granted Feb 1, 1977·21 cites·9 claims
- 1374US4171994AUse of nitrogen-bearing base coatings in the manufacture of high permeability silicon steelALLEGHENY LUDLUM IND INC·Filed 1976·Granted Oct 23, 1979·16 cites·15 claims
- 1474US4115161AProcessing for cube-on-edge oriented silicon steelALLEGHENY LUDLUM IND INC·Filed 1977·Granted Sep 19, 1978·14 cites·14 claims
- 1573US4054471AProcessing for cube-on-edge oriented silicon steelALLEGHENY LUDLUM IND INC·Filed 1976·Granted Oct 18, 1977·14 cites·20 claims
- 1672US4043839AInternal nitridation of cobalt-base superalloysALLEGHENY LUDLUM IND INC·Filed 1976·Granted Aug 23, 1977·22 cites·13 claims
- 1772US3954521AMethod of producing grain oriented silicon steelALLEGHENY LUDLUM IND INC·Filed 1974·Granted May 4, 1976·14 cites·3 claims
- 1871US4165868AMethod and apparatus for heating coils of stripALLEGHENY LUDLUM IND INC·Filed 1977·Granted Aug 28, 1979·15 cites·4 claims
- 1970US4217136ACorrosion resistant austenitic stainless steelALLEGHENY LUDLUM IND INC·Filed 1979·Granted Aug 12, 1980·16 cites·7 claims
- 2069US3944396APressure bonded, low yield strength compositeALLEGHENY LUDLUM IND INC·Filed 1974·Granted Mar 16, 1976·22 cites·5 claims
- 2168US4147506AMethod and apparatus for heating coils of stripALLEGHENY LUDLUM IND INC·Filed 1977·Granted Apr 3, 1979·16 cites·12 claims
- 2266US4079312AContinuous testing method and apparatus for determining the magnetic characteristics of a strip of moving material, including flux inducing and pick-up device thereforALLEGHENY LUDLUM IND INC·Filed 1976·Granted Mar 14, 1978·23 cites·23 claims
- 2365US4069008AMethod and apparatus for heating a workpieceALLEGHENY LUDLUM IND INC·Filed 1976·Granted Jan 17, 1978·11 cites·14 claims
- 2464US4114251AProcess for producing elongated metal articlesALLEGHENY LUDLUM IND INC·Filed 1975·Granted Sep 19, 1978·19 cites·1 claims
- 2564US3936297AMethod of producing austenitic stainless steelALLEGHENY LUDLUM IND INC·Filed 1974·Granted Feb 3, 1976·16 cites·9 claims
- 2663US4213804AProcessing for cube-on-edge oriented silicon steelALLEGHENY LUDLUM IND INC·Filed 1979·Granted Jul 22, 1980·10 cites·10 claims
- 2763US4059218AMethod of soldering with phosphoric acid soldering fluxALLEGHENY LUDLUM IND INC·Filed 1976·Granted Nov 22, 1977·15 cites·11 claims
- 2862US4010050AProcessing for aluminum nitride inhibited oriented silicon steelALLEGHENY LUDLUM IND INC·Filed 1975·Granted Mar 1, 1977·13 cites·8 claims
- 2961US4000015AProcessing for cube-on-edge oriented silicon steel using hydrogen of controlled dew pointALLEGHENY LUDLUM IND INC·Filed 1975·Granted Dec 28, 1976·12 cites·5 claims
- 3060US4047983AProcess for producing soft magnetic materialALLEGHENY LUDLUM IND INC·Filed 1975·Granted Sep 13, 1977·14 cites·4 claims
- 3160US4047941ADuplex ferrit IC-martensitic stainless steelALLEGHENY LUDLUM IND INC·Filed 1976·Granted Sep 13, 1977·12 cites·5 claims
- 3260US4026777AMetallic descaling systemALLEGHENY LUDLUM IND INC·Filed 1976·Granted May 31, 1977·9 cites·5 claims
- 3359US4032366AGrain-oriented silicon steel and processing thereforALLEGHENY LUDLUM IND INC·Filed 1975·Granted Jun 28, 1977·11 cites·7 claims
- 3457US4200477AProcessing for electromagnetic silicon steelALLEGHENY LUDLUM IND INC·Filed 1978·Granted Apr 29, 1980·9 cites·16 claims
- 3556US4119109AApparatus for treating stripALLEGHENY LUDLUM IND INC·Filed 1977·Granted Oct 10, 1978·8 cites·11 claims
- 3656US4078942AMethod and apparatus for cleaning strip in a molten salt bathALLEGHENY LUDLUM IND INC·Filed 1977·Granted Mar 14, 1978·9 cites·7 claims
- 3756US4032336ASintered liquid phase stainless steelALLEGHENY LUDLUM IND INC·Filed 1976·Granted Jun 28, 1977·10 cites·6 claims
- 3855US4160677AMethod of processing alloy steel stripALLEGHENY LUDLUM IND INC·Filed 1978·Granted Jul 10, 1979·7 cites·1 claims
- 3955US4060191AMethod of soldering with phosphoric acid soldering fluxALLEGHENY LUDLUM IND INC·Filed 1976·Granted Nov 29, 1977·11 cites·8 claims
- 4055US3936323AMethod for producing ferritic stainless steel having high anisotropyALLEGHENY LUDLUM IND INC·Filed 1975·Granted Feb 3, 1976·9 cites·2 claims
- 4154US3956809APressure bonded composite material with low yield strengthALLEGHENY LUDLUM IND INC·Filed 1974·Granted May 18, 1976·14 cites·5 claims
- 4253US4043838AMethod of producing pitting resistant, hot-workable austenitic stainless steelALLEGHENY LUDLUM IND INC·Filed 1976·Granted Aug 23, 1977·7 cites·4 claims
- 4352US4055062AProcess for manufacturing strip lead framesALLEGHENY LUDLUM IND INC·Filed 1976·Granted Oct 25, 1977·17 cites·4 claims
- 4452US3938990AMethod of making corrosion resistant austenitic steelALLEGHENY LUDLUM IND INC·Filed 1974·Granted Feb 17, 1976·6 cites·1 claims
- 4551US4054470ABoron and copper bearing silicon steel and processing thereforeALLEGHENY LUDLUM IND INC·Filed 1976·Granted Oct 18, 1977·7 cites·8 claims
- 4651US4012299AMetallic descaling systemALLEGHENY LUDLUM IND INC·Filed 1976·Granted Mar 15, 1977·6 cites·5 claims
- 4751US3997373AFerritic stainless steel having high anisotropyALLEGHENY LUDLUM IND INC·Filed 1975·Granted Dec 14, 1976·8 cites·2 claims
- 4850US4167426AMethod for annealing silicon steelALLEGHENY LUDLUM IND INC·Filed 1978·Granted Sep 11, 1979·7 cites·3 claims
- 4949US4179315ASilicon steel and processing thereforeALLEGHENY LUDLUM IND INC·Filed 1978·Granted Dec 18, 1979·9 cites·6 claims
- 5049US4115158AProcess for producing soft magnetic materialALLEGHENY LUDLUM IND INC·Filed 1977·Granted Sep 19, 1978·10 cites·5 claims
Showing the top 50 of 85 patent records by PatentIndex Score.
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