North University of China

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL219
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 247
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 250
 
  
 
B23B TURNING; BORING 250
 
  
 
C22C ALLOYS 270
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES2107
 
  
 
B22C FOUNDRY MOULDING 127
 
  
 
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 192
 
  
 
B23Q DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING 139
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9630260 Rear-mounted deep hole machining on-line detection and deviating correction deviceDec 11, 15Apr 25, 17[B23Q, B23B, G01S]
9581686 Silicon-based monolithic integrated sonar arrayMar 11, 11Feb 28, 17[G01H, G10K, G01S]
9561547 Deep hole machining on-line deviating correction device based on laser detectionDec 11, 15Feb 07, 17[B23B, B23K, G01S]
9051222 Slow and controlled release polymeric sulfur fertilizer containing multiple nutrient elements and method for preparing the sameOct 21, 14Jun 09, 15[C08G, C05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0145,168 Preparation method of nanosheet nitrogen-containing porous carbon materialAbandonedMay 14, 15May 26, 16[C01B, C07B]

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