KOREA RAILROAD RESEARCH INSTITUTE

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 422
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 373
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 3444
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 3104
 
  
 
B61D BODY DETAILS OR KINDS OF RAILWAY VEHICLES 224
 
  
 
E21D SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS 214
 
  
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 258
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR265
 
  
 
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
 
  
 
G07C TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS, OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE 245

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0051,398 CARBON FIBER LAYER HAVING CARBON COATINGApr 07, 16Feb 22, 18[D01F]
2017/0057,365 CHARGING APPARATUS FOR UNMANNED AERIAL VEHICLES AND METHOD THEREOFFeb 23, 16Mar 02, 17[B64F, G01S, B64C, B60L]
2017/0048,894 APPARATUS AND METHOD FOR CONTROLLING PTT SERVICE BY MULTIPLEXING CALL ORIGINATOR AND FLOOR ARBITRATORAug 11, 16Feb 16, 17[H04W]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9876611 System and method for retransmitting received data using index coding and statistical characteristicsMar 17, 16Jan 23, 18[H04L]
9855852 Charging apparatus for unmanned aerial vehicles and method thereofFeb 23, 16Jan 02, 18[H02J, B64F, G01S, B64C, B60L]
9789859 Railway vehicle braking system and methodNov 19, 14Oct 17, 17[B61H, B60T, G06F, G05D]
9731736 Apparatus for detecting train positionNov 14, 13Aug 15, 17[B61L, G01S]
9701325 Energy harvester, wireless sensor device having the energy harvester, and system for monitoring railroad vehicle using the sameOct 30, 15Jul 11, 17[H02K, B61L, G01J, G07C, G01M, H02N, B60C, G01D]
9698663 Orientation control device for magnetic fluid and method for sameApr 13, 13Jul 04, 17[H02K, F01D]
9688290 Electric rail car door structureApr 29, 14Jun 27, 17[E06B, B61D]
9531219 Non-contact power feeding apparatus using conductive fluidDec 15, 11Dec 27, 16[H02J, B60L]
9421983 Active pressurization system making use of platform track area upper slab of underground train stationJun 01, 12Aug 23, 16[E21F, B61B]
9382796 Cartridge for tunnel blastingSep 26, 14Jul 05, 16[E21C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0298,048 CARBON DIOXIDE ADSORPTION AND REGENERATION APPARATUSAbandonedDec 03, 13Oct 22, 15[B01D]
2015/0231,989 TWO-PHASE TWO-COLUMN LINEAR PULSE MOTOR PROPULSION SYSTEMAbandonedAug 09, 13Aug 20, 15[B60L]
2015/0222,188 HIGH FREQUENCY TRANSFORMER FOR REDUCING LEAKAGE FLUXAbandonedDec 22, 14Aug 06, 15[H02M, H01F]
2014/0366,768 SEALING TYPE SCREEN DOOR DEVICEAbandonedDec 15, 11Dec 18, 14[B61B]
7042691 Electrical inertial load controlling apparatus having gate drive for protecting IGBTExpiredDec 24, 01May 09, 06[H02H]

Top Inventors for This Owner

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