L&N Metallurgical Products Co.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 154

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5319576 Wireless data gathering system for molten metal processingAug 05, 87Jun 07, 94[G08C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5709474 Refractory sheath for sensorsExpiredNov 15, 94Jan 20, 98[F16L, G01K]
5223125 Oxygen sensor for aluminum killed, high silicon steel meltsExpiredNov 22, 91Jun 29, 93[G01N]
4981045 Testing of liquid melts and probes for use in such testingExpiredAug 10, 89Jan 01, 91[G01N]
4762571 Expendable immersion device for combining an expendable immersion sensor and molten metal samplerExpiredMar 14, 86Aug 09, 88[H01L]
4717463 Oxygen sensorExpiredJan 15, 87Jan 05, 88[G01N]
4468009 Refractory protection tube for immersion molten metal devicesExpiredJul 05, 83Aug 28, 84[H01V]
4399713 Device for sampling molten material and means for operating sameExpiredJun 25, 81Aug 23, 83[G01N]
4380937 Sampler for a hot liquidExpiredApr 13, 81Apr 26, 83[G01N]
4338841 Entrance tube for a sampler for molten materialExpiredJul 30, 80Jul 13, 82[G01N]
4317380 Device for obtaining a sample of molten material and methods of assembling components thereofExpiredDec 26, 79Mar 02, 82[G01N]
4297902 Sampler for molten material and a component thereofExpiredSep 17, 79Nov 03, 81[G01N]
4274284 Expandable phase change detector deviceExpiredApr 14, 80Jun 23, 81[G01K]
4250753 Molten material samplerExpiredJun 27, 79Feb 17, 81[G01N]
4250754 Sampler for a hot liquid and connector thereforExpiredMay 09, 79Feb 17, 81[G01N]
4229230 Expendable immersion thermocoupleExpiredOct 19, 78Oct 21, 80[H01J]

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