VARTA BATTERIE AKTIENGESELLSCHAFT

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2152
 
  
 
C01F COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS 120
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 138

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6210837 Electrode grid for lead storage batteriesApr 23, 99Apr 03, 01[H01M]
6080510 Ternary mixed lithium oxides, process for preparing the same, and secondary lithium battery formed therefromJun 30, 97Jun 27, 00[H01M, C01G, C01F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5538809 Automatic coupling system for traction batteriesExpiredJul 25, 95Jul 23, 96[H01M]
5503949 Plate block for lead batteriesExpiredSep 16, 94Apr 02, 96[H01M]
5460730 Process and apparatus for treating wastewater from lead battery productionExpiredJun 27, 94Oct 24, 95[C02F]
5407760 Sealing plug for a lead batteryExpiredAug 03, 94Apr 18, 95[H01M]
5338596 Process for producing a lead storage battery with a thixotropic gel electrolyteExpiredDec 24, 92Aug 16, 94[H01M]
5329681 Process for preparing the porous metallic framework of an electrode carrier for the attachment of a take-off conductorExpiredMay 29, 91Jul 19, 94[B23P, H01M]
5215215 Method and apparatus for introducing viscous active ingredients into the case of galvanic cellExpiredJan 11, 91Jun 01, 93[B67B]
5047302 Galvanic cell with a polymer electrodeExpiredAug 10, 87Sep 10, 91[H01M]
5021306 Spiral-wound galvanic cellExpiredNov 15, 89Jun 04, 91[H01M]
4957832 Plastic sealing element for a galvanic primary cellExpiredNov 14, 88Sep 18, 90[H01M]
4952861 Process for charging maintenance-free lead batteries with a fixed electrolyteExpiredSep 06, 88Aug 28, 90[H02J, H01M]
4913989 Positive collector electrode for batteries with alkaline electrolytesExpiredApr 07, 89Apr 03, 90[H01M]
4903753 Casting technique for lead storage battery gridsExpiredMar 27, 86Feb 27, 90[B22D]
4897324 Hermetically-sealed alkaline batteryExpiredJun 27, 88Jan 30, 90[H01M]
4865928 Electric batteryExpiredOct 05, 88Sep 12, 89[H01M]
4840857 Galvanic primary element with negative lithium electrodeExpiredApr 28, 88Jun 20, 89[H01M]
4833459 Circuit arrangement for continually monitoring the quality of a multicell batteryExpiredJan 27, 88May 23, 89[G08B]
4816359 Electrochemical secondary element with at least one polymer electrodeExpiredMar 10, 87Mar 28, 89[H01M]
4774993 Device for attaching terminal straps and terminal poles to the lugs of a plate group for a storage battery cellExpiredMay 19, 87Oct 04, 88[B22D, B22C]
4774155 Hermetically sealed galvanic cellExpiredNov 25, 87Sep 27, 88[H01M]

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