Danfoss Drives A/S

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 681
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 557
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS569
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 4155
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 374
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 3153
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 228
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 2100
 
  
 
F04F PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED 113

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9777733 Flow controlJul 01, 14Oct 03, 17[F04B, F04D, E04H]
9726184 Safety vacuum release systemDec 03, 13Aug 08, 17[F04B, F04D, E04H]
9712098 Safety system and method for pump and motorOct 17, 13Jul 18, 17[H02P, F04D, H02H]
9692337 Method for controlling a synchronous reluctance electric motorJun 11, 13Jun 27, 17[H02P, G01R]
9692340 Variable torque angle for electric motorJun 11, 13Jun 27, 17[H02P]
9605680 Control algorithm of variable speed pumping systemJul 08, 14Mar 28, 17[F04B, G05D, F04D, F04F]
9556874 Method of controlling a pump and motorJun 09, 09Jan 31, 17[F04B, F04D]
9551344 Anti-entrapment and anti-dead head functionDec 04, 13Jan 24, 17[F04B, F04D]
8860344 Method for implementing bootstrap-supply charging in a motor controller at energized motor and motor controller using such a methodFeb 18, 11Oct 14, 14[H03K, H02P]
8794301 Flow distributor assembly and a cooling unit with a flow distributor assemblyOct 02, 09Aug 05, 14[F28F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0274,251 HARMONIC NOISE REDUCTIONAbandonedApr 29, 11Nov 01, 12[H02P]
2012/0127,763 ELECTRIC POWER SUPPLY SYSTEM COMPRISING POWER MODULES COUPLED IN PARALLELAbandonedNov 16, 11May 24, 12[H02J, H02M]
2012/0098,471 ELECTRICAL SYSTEM AND METHOD FOR CONTROLLING AN ELECTRICAL MOTORAbandonedOct 20, 10Apr 26, 12[H02P]
2007/0118,345 Method and system for programming a motor controllerAbandonedJan 18, 07May 24, 07[G06G]
7050278 Motor controller incorporating an electronic circuit for protection against inrush currentsExpiredMay 21, 03May 23, 06[H02H]
2005/0190,094 Method for measuring currents in a motor controller and motor controller using such methodAbandonedApr 11, 05Sep 01, 05[H03M]
6717318 Electric motorExpiredSep 27, 99Apr 06, 04[H02K]
6493227 Cooling apparatus for power semiconductorsExpiredNov 20, 01Dec 10, 02[H05K]
6468042 Method for regulating a delivery variable of a pumpExpiredFeb 07, 02Oct 22, 02[F04B]
2002/0151,993 Method and system for programming a motor controllerAbandonedMay 08, 02Oct 17, 02[G05B]
6426633 Method for monitoring a rotational angle sensor on an electrical machineExpiredJun 14, 00Jul 30, 02[G01R]
6354805 Method for regulating a delivery variable of a pumpExpiredJul 06, 00Mar 12, 02[F04B]
6351359 Circuit for blocking a semiconductor switching device on overcurrentExpiredAug 20, 99Feb 26, 02[H02H]
6037742 Method for the field-oriented control of an induction motorExpiredNov 27, 98Mar 14, 00[H02P]
5909372 User interface for programming a motor controllerExpiredJun 07, 96Jun 01, 99[G05B]

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