Dennis Tool Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 1383
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 745
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 291
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 268
 
  
 
B23F MAKING GEARS OR TOOTHED RACKS 115
 
  
 
C22C ALLOYS 171
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 180
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8602133 Tool with welded cemented metal carbide inserts welded to steel and/or cemented metal carbideJun 03, 10Dec 10, 13[E21B]
7712549 Drilling toolNov 15, 04May 11, 10[E21B]
6500226 Method and apparatus for fabrication of cobalt alloy composite insertsApr 24, 00Dec 31, 02[B22F]
6315066 Microwave sintered tungsten carbide insert featuring thermally stable diamond or grit diamond reinforcementSep 18, 98Nov 13, 01[E21B]
6213931 Stump grinding toothDec 09, 99Apr 10, 01[B23F]
6126895 Process and apparatus for the preparation of particulate or solid partsMay 21, 99Oct 03, 00[B22F]
6120960 Image forming method and dry toner thereforMay 21, 99Sep 19, 00[G03G]
6066290 Method and apparatus for transporting green work pieces through a microwave sintering systemFeb 05, 99May 23, 00[B22F]
6063333 Method and apparatus for fabrication of cobalt alloy composite insertsMay 01, 98May 16, 00[B22F]
6011248 Method and apparatus for fabrication and sintering composite insertsSep 25, 97Jan 04, 00[H05B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0182,982 CARBIDE WEAR SURFACE AND METHOD OF MANUFACTUREAbandonedJan 17, 12Jul 18, 13[F16C, B22D, B32B]
2012/0012,319 ENHANCED HYDROCARBON RECOVERY USING MICROWAVE HEATINGAbandonedJul 16, 10Jan 19, 12[E21B]
2006/0237,234 Earth boring toolAbandonedApr 25, 05Oct 26, 06[E21B]
2005/0211,702 Crucibles for a microwave sintering furnaceAbandonedMar 29, 04Sep 29, 05[H05B]
2003/0220,157 Golf club head with highly polished hard contact factAbandonedMay 23, 02Nov 27, 03[A63B]
5816347 PDC clad drill bit insertExpiredJun 07, 96Oct 06, 98[E21B]
5620382 Diamond golf club headExpiredMar 18, 96Apr 15, 97[A63B]
5498081 Bearing assembly incorporating shield ring precluding erosionExpiredDec 17, 93Mar 12, 96[F16C, E21B]

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