H&L TOOTH COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E02F DREDGING; SOIL-SHIFTING 1531
 
  
 
1503 AGRICULTURAL MACHINERY919
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
1203 LOCOMOTIVES AND ROLLING STOCK FOR RAILWAYS AND ALL OTHER RAIL VEHICLES18

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D797157 Wear assembly lock structureJun 03, 16Sep 12, 17[1503]
9562347 Multipiece wear assemblyJun 03, 16Feb 07, 17[E02F]
D766336 Digging tooth assembly securement memberJun 01, 15Sep 13, 16[1503]
9359744 Multipiece wear assemblyDec 28, 12Jun 07, 16[E02F]
D737339 Digging tooth assembly securement memberApr 03, 13Aug 25, 15[1503]
D696698 Wedge keyDec 11, 12Dec 31, 13[1503]
8443504 Pin tool assembly for acting on a retaining pin for a tooth of a ground engaging implementFeb 05, 10May 21, 13[B23P, B25B]
8347530 Tooth assembly and related method for releasably coupling a tooth to an adapterAug 04, 10Jan 08, 13[E02F]
7818902 Ground engaging digging toothNov 12, 08Oct 26, 10[E02F]
D576644 Lip shroudFeb 28, 08Sep 09, 08[1503]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7658024 Universal digging tooth attachment apparatusExpiredJul 06, 06Feb 09, 10[E02F, E21C]
5743031 Digging hardware signaling apparatusExpiredFeb 23, 96Apr 28, 98[G08B, E02F, E21C]
5617655 Securement pin for earth excavation teethExpiredMar 22, 95Apr 08, 97[E02F]
5350022 Attachment assembly for wear caps ripper teethExpiredJul 22, 92Sep 27, 94[A01B]

Top Inventors for This Owner

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