Fansteel Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE32111 Coated cemented carbide bodiesJul 29, 83Apr 15, 86[B32B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6019434 Point attack bitExpiredOct 07, 97Feb 01, 00[E21C]
5787332 Process for recovering tantalum and/or niobium compounds from composites containing a variety of metal compoundsExpiredSep 26, 96Jul 28, 98[C01G, C01F]
4952001 Mining bit preload retainerExpiredMay 31, 89Aug 28, 90[F21C]
4834594 Drill steel drive unitExpiredApr 06, 87May 30, 89[B23B, E21C]
4818629 Joint construction for lined equipmentExpiredAug 26, 85Apr 04, 89[B32B]
4799977 Graded multiphase oxycarburized and oxycarbonitrided material systemsExpiredSep 21, 87Jan 24, 89[C21D]
4763956 Mining tool retainerExpiredJan 16, 87Aug 16, 88[E21C]
4714660 Hard coatings with multiphase microstructuresExpiredDec 23, 85Dec 22, 87[C04B, B24D, B32B]
4678238 Coolant sleeve for mining toolsExpiredMar 17, 86Jul 07, 87[E21F, E21C]
4575156 Mining block and bitExpiredMar 13, 84Mar 11, 86[E21C]
4515230 Roof drill bitExpiredAug 21, 84May 07, 85[E21B]
4497070 Unitary leg and foot protective deviceExpiredDec 16, 82Feb 05, 85[A41D, A43B]
4484783 Retainer and wear sleeve for rotating mining bitsExpiredJul 22, 82Nov 27, 84[E21C]
4473125 Insert for drill bits and drill stabilizersExpiredNov 17, 82Sep 25, 84[E21B]
4357382 Coated cemented carbide bodiesExpiredNov 06, 80Nov 02, 82[B32B]
4323114 Cluster heat exchangerExpiredMar 26, 79Apr 06, 82[F28F]
4291104 Brazed corrosion resistant lined equipmentExpiredSep 07, 79Sep 22, 81[B01J]
4278372 Adjustable boring bar mechanismExpiredNov 30, 79Jul 14, 81[B23B]
4249944 Method of making electrical contact materialExpiredApr 09, 79Feb 10, 81[B22F]
4248553 Cutting insert configurationExpiredSep 29, 78Feb 03, 81[B26D]

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