DEHN + SOHNE GMBH + CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1760
 
  
 
H01T SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES 1314
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 1183
 
  
 
H01C RESISTORS820
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 4129
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 281
 
  
 
F02P IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES 237
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2126
 
  
 
F23Q IGNITION 116
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0366,000 OVERVOLTAGE PROTECTION ARRANGEMENT FOR INFORMATION AND TELECOMMUNICATION TECHNOLOGYDec 02, 15Dec 21, 17[H02H, H05K]
2017/0201,054 ADAPTER FOR MOUNTING SINGLE- OR MULTI-PIN OVERVOLTAGE PROTECTION DEVICES THAT ARE DESIGNED AS PLUG-IN MODULES, AND USE OF SUCH AN ADAPTERMay 21, 15Jul 13, 17[H01R]
2015/0207,308 ENCAPSULATED SURGE PROTECTION DEVICE CAPABLE OF CARRYING LIGHTNING CURRENTS AND LIMITING FOLLOW CURRENTS AND COMPRISING AT LEAST ONE SPARK GAPMay 07, 13Jul 23, 15[H02H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9885738 Circuit assembly for the state monitoring and logging of overvoltage protection devices or overvoltage protection systemsMar 05, 13Feb 06, 18[G01R, H02H, G06K]
9871368 Encapsulated surge protection device capable of carrying lightning currents and limiting follow currents and comprising at least one spark gapMay 07, 13Jan 16, 18[H01T, H02H]
9780463 Surge protection device with at least one surge protection unitFeb 10, 15Oct 03, 17[H04M, H01R, H01H]
9780553 Overvoltage protection device with short-circuit function for protecting installations and personsFeb 13, 14Oct 03, 17[H01T, H01H, H02H]
9691560 Single- or multi-pole switching device, in particular for DC applicationsMar 16, 12Jun 27, 17[H01L, H01H]
9660437 Arrangement for forming a thermal isolation pointApr 04, 16May 23, 17[H01T, H01C, H02H]
9640352 Overvoltage protection device having a thermal disconnection apparatusJan 30, 14May 02, 17[H01T, H01C, H01H]
9601986 Method and arrangement for the surge protection of inverters for photovoltaic systemsAug 21, 12Mar 21, 17[H02M, H02H]
9461461 Defect indicator for an electronic device, in particular surge arresterMar 01, 13Oct 04, 16[H01T, H02H]
9331471 Arrangement for forming a thermal isolation pointOct 17, 11May 03, 16[H01T, H01C, H02H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0094,018 CIRCUIT ARRANGEMENT FOR SURGE PROTECTION IN DC SUPPLY CIRCUITSAbandonedMar 27, 14Mar 31, 16[H01T]
8526159 Surge protector having a thermal separating deviceExpiredJun 24, 09Sep 03, 13[H02H]
7271992 Compact arrangement for multipole, surge-proof surge arresters and encapsulated surge arrester for the sameExpiredNov 27, 01Sep 18, 07[H02H]
6788518 Spark gap arrangementExpiredAug 16, 01Sep 07, 04[H02H]
6788519 Pressure-resistant encapsulated air-gap arrangement for the draining off of damaging perturbances due to overvoltagesExpiredAug 06, 02Sep 07, 04[H02H]
5450274 Spark gap arrangementExpiredNov 26, 93Sep 12, 95[H01T]
5398150 Coordinated electric surge suppressor with means for suppressing oscillatory transient overvoltagesExpiredMar 09, 92Mar 14, 95[H02H]
4586104 Passive overvoltage protection devices, especially for protection of computer equipment connected to data linesExpiredDec 12, 83Apr 29, 86[H02H]
4385338 Power connector with overvoltage protectionExpiredAug 20, 80May 24, 83[H02H]
4345293 ArresterExpiredAug 20, 80Aug 17, 82[H01T]
4345295 Arrester with spark gapExpiredAug 20, 80Aug 17, 82[H01T]

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