CHANG TYPE INDUSTRIAL COMPANY, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
1509 MACHINE TOOLS, ABRADING AND FOUNDING MACHINERY1316
 
  
 
B23B TURNING; BORING 250
 
  
 
B27C PLANING, DRILLING, MILLING, TURNING, OR UNIVERSAL MACHINES 211
 
  
 
1505 WASHING, CLEANING AND DRYING MACHINES232
 
  
 
B23D PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 128
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 148
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 1104

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8578621 Drill presses having laser alignment systems and methods thereforJun 24, 10Nov 12, 13[G01B]
8381624 Band sawFeb 06, 04Feb 26, 13[B23D]
D596816 Support for dust collectorJan 24, 08Jul 21, 09[1505]
D594484 Table sawJan 12, 09Jun 16, 09[1509]
D587289 Table sawJun 20, 08Feb 24, 09[1509]
D586371 Table sawJul 17, 07Feb 10, 09[1509]
D577374 Table sawJan 24, 06Sep 23, 08[1509]
D574861 LatheJun 05, 07Aug 12, 08[1509]
D567265 PlanerJun 19, 07Apr 22, 08[1509]
D567266 PlanerJun 28, 07Apr 22, 08[1509]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0141,217 ZEROABLE DEPTH SCALE FOR DRILL PRESSES AND METHODS THEREFORAbandonedDec 05, 10Jun 07, 12[B23B]
2012/0098,183 UNIVERSAL FENCE ASSEMBLIES FOR POWER TOOL TABLES HAVING MULTI-POSITION STOP ASSEMBLIESAbandonedOct 20, 10Apr 26, 12[B23Q]
2012/0048,586 DRILL PRESSES HAVING NOISE REDUCING COMPONENTSAbandonedAug 27, 10Mar 01, 12[E21B]
2011/0306,451 DRILL PRESSES HAVING SPRING-LOADED DRIVE BELT TENSIONERSAbandonedJun 11, 10Dec 15, 11[F16H]
2010/0199,453 WIRELESS PARTICLE COLLECTION SYSTEMAbandonedFeb 09, 09Aug 12, 10[A47L]
7686045 Apparatus and method for creating a flat surface on a workpieceExpiredJul 13, 05Mar 30, 10[B27C]
2009/0209,379 LATHE BELT TENSION DESIGNSAbandonedFeb 19, 08Aug 20, 09[F16H]
7509900 Scroll saw with dust collectorExpiredFeb 20, 01Mar 31, 09[B26D]
7387655 Air filtration unitExpiredMay 26, 06Jun 17, 08[B01D]
7369916 Drill pressExpiredOct 01, 04May 06, 08[G06F]
7346847 Power tool control system user interfaceExpiredJul 31, 03Mar 18, 08[G06F]
7311029 Quick-pin blade tensioning deviceExpiredJul 17, 03Dec 25, 07[B23D]
7290474 System for rapidly stopping a spinning table saw bladeExpiredDec 29, 04Nov 06, 07[B23D]
7281460 Positive lock tail stock support for latheExpiredDec 23, 04Oct 16, 07[B23B]
7234380 Side pressure splitterExpiredJan 23, 04Jun 26, 07[B27G]
7156590 Quill lock assemblyExpiredOct 28, 04Jan 02, 07[B23Q]
7074250 Air filtration unitExpiredDec 19, 03Jul 11, 06[B01D]
7040239 Downdraft tableExpiredSep 25, 02May 09, 06[A47B]
6966350 Power tool supporting cabinet with a detachable dust binExpiredSep 25, 02Nov 22, 05[B25H]
6937336 Optical alignment system for power toolExpiredAug 15, 02Aug 30, 05[B23B, G01C]

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