LIUNG FENG INDUSTRIAL CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 524
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 254
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 270
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 2360
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
B23H WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL 120
 
  
 
B63H MARINE PROPULSION OR STEERING 139
 
  
 
C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 118

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8887593 Device of a pair of claw-type rotors having same profilesMar 13, 13Nov 18, 14[F01C, F16H]
8048692 LED light emitter with heat sink holder and method for manufacturing the sameJan 25, 08Nov 01, 11[H01L]
7816704 Method for packaging a light emitting device including a metal reflection layer and a metal heat dissipation layerNov 12, 08Oct 19, 10[H01L]
7704484 Method for producing hydrogen by using different metalsDec 31, 07Apr 27, 10[C01B, C25C, B23H]
7565742 Methods for designing lobe-type rotorsJan 25, 06Jul 28, 09[G06F, F02B, F01C, B21D]
7562450 Methods for designing single-lobe rotorsJan 25, 06Jul 21, 09[G06F, F02B, F01C, B21D]
7521038 Method for producing hydrogen by using magnesium scrap and apparatus thereofSep 20, 06Apr 21, 09[C01B, B01J]
7476989 Dynamic magnet apparatus for generating electrical powerJun 08, 06Jan 13, 09[H02K]
7255545 Double-lobe type rotor design processAug 31, 05Aug 14, 07[F01C]
7174842 Boat propulsion systemSep 14, 05Feb 13, 07[B63H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0133,108 Method for producing hydrogen and applications thereofAbandonedMar 05, 09Jun 03, 10[C25B, H01M]
2009/0229,395 Structure of power transmission apparatusAbandonedNov 18, 08Sep 17, 09[F16H]
2008/0042,496 Electromagnetic power transferring systemAbandonedSep 26, 06Feb 21, 08[H02K]
7156163 Composite heat exchangerExpiredOct 21, 04Jan 02, 07[F28D]
2006/0219,324 Method and apparatus for magnetizing metalAbandonedMar 24, 06Oct 05, 06[H01F]
2005/0196,300 PumpAbandonedMar 05, 04Sep 08, 05[F04B]
2005/0189,287 Slurry expressing and liquid displacing deviceAbandonedFeb 26, 04Sep 01, 05[B30B, B01D]
2005/0156,563 Inductive chargerAbandonedJan 05, 04Jul 21, 05[H02J]
2005/0085,122 ChargerAbandonedOct 16, 03Apr 21, 05[H01R]

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