Berkenhoff GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
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 814
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 254
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
A46B BRUSHES 129
 
  
 
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
 
  
 
C22C ALLOYS 171
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 173
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8895885 Wire electrode for spark-erosion cuttingMar 28, 11Nov 25, 14[B23H]
8853587 Wire electrode for electrical discharge cuttingNov 26, 09Oct 07, 14[B23H]
RE44789 Wire electrode and process for producing a wire electrode, particular for a spark erosion processJul 13, 12Mar 04, 14[B21D, B32B]
8067689 EDM wireNov 29, 06Nov 29, 11[H01B]
6806433 High-strength erosion electrodeJul 31, 01Oct 19, 04[B23H]
6794597 Wire electrode with a structured interface surfaceSep 17, 02Sep 21, 04[B23H]
6781081 Wire electrode for spark erosion cuttingSep 13, 02Aug 24, 04[B23K]
6566622 Wire electrodeMar 23, 00May 20, 03[B23H]
6447930 Wire electrode and process for producing a wire electrode, particular for a spark erosion processFeb 11, 98Sep 10, 02[B21D, B32B]
6448527 High-strength erosion electrodeDec 09, 98Sep 10, 02[B23H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0152,928 Auxiliary Material for Soldering SheetsAbandonedJul 05, 10Jun 21, 12[B23K, C22C]
2006/0104,852 Alloy, especially for spectacle framesAbandonedJul 10, 03May 18, 06[C22C]
2006/0018,784 Weld-solder fillerAbandonedSep 22, 05Jan 26, 06[C22C]
2005/0029,232 High-strength erosion electrodeAbandonedSep 08, 04Feb 10, 05[B23H]
2004/0115,089 Weld-solder fillerAbandonedSep 24, 03Jun 17, 04[C22C]
6348667 Wire electrode for the spark-erosive cutting of hard metalExpiredDec 29, 00Feb 19, 02[B23H]
5919322 Alloy, in particular for use in the manufacture of frames for glass, jewelry, and the likeExpiredJun 18, 97Jul 06, 99[C22C]
5908517 Alloy, in particular for use in the manufacture of frames for glass, jewelry, and the likeExpiredJun 17, 97Jun 01, 99[C22C]
5259898 Alloy for spectacle wire frames and electronic component partsExpiredDec 13, 91Nov 09, 93[C22C]
5248104 Wire-unwinding deviceExpiredJun 14, 91Sep 28, 93[B65H]
5140125 Wire-electrode arrangement for spark-erosive cuttingExpiredDec 18, 90Aug 18, 92[B23H]
5078032 Device for cutting wireExpiredSep 07, 90Jan 07, 92[B26D]
4935594 Eroding electrode, in particular a wire electrode for the sparkerosive workingExpiredOct 21, 88Jun 19, 90[B23H]
4924050 Wire electrode for use in spark-erosive cuttingExpiredMar 27, 89May 08, 90[B23H]
4766280 Wire electrode for the spark erosive cuttingExpiredFeb 12, 87Aug 23, 88[B23H]
4701302 Filler metal for weldingExpiredJul 08, 86Oct 20, 87[C22C]
4631237 Wire electrode for spark-eroding systemsExpiredApr 17, 85Dec 23, 86[B23P]
4287404 Electrode for electrical discharge machiningExpiredFeb 26, 79Sep 01, 81[B23P]

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