Sing Hua Industrial Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B23B TURNING; BORING 250
 
 
 
B23D PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 128
 
 
 
B25D PERCUSSIVE TOOLS 119
 
 
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 128
 
 
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 123
 
 
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8844646 Integrated cylinder and reversing assembly of a reciprocating pneumatic toolNov 18, 11Sep 30, 14[B23B, B25D, B23D]
8196675 Impact hammer with pre-pressing damping and buffering effectMar 24, 10Jun 12, 12[B25D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8647084 Cylinder dividing mechanism of a pneumatic toolExpiredFeb 03, 12Feb 11, 14[B23B, B27C, F04C, F03C, F01C]
2013/0112,449 TORSION INCREASING PNEUMATIC TOOL PERCUSSION HAMMERAbandonedNov 09, 11May 09, 13[B25D]
2012/0048,583 RECIPROCATING PNEUMATIC TOOLAbandonedAug 27, 10Mar 01, 12[B25F]
2011/0232,475 INTEGRATED CYLINDER AND REVERSING ASSEMBLY MODULE OF A RECIPROCATING PNEUMATIC TOOLAbandonedMar 24, 10Sep 29, 11[B25D]

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