DARAMIC, INC.

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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 6148
 
  
 
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
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR 134
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9876209 Battery separator with improved oxidation stabilityDec 21, 11Jan 23, 18[H01M]
7425387 Separator for a lead storage batteryJul 31, 04Sep 16, 08[H01M]
7214444 Melt blown battery separatorSep 23, 03May 08, 07[H01M]
6852444 Reinforced multilayer separator for lead-acid batteriesSep 20, 01Feb 08, 05[C25B, H01M]
6689509 Laminated multilayer separator for lead-acid batteriesFeb 14, 02Feb 10, 04[H01M]
6142358 Wafer-to-wafer transfer of microstructures using break-away tethersMay 31, 97Nov 07, 00[H01L, B23K, B65G]
5154988 Deep cycle battery separatorsMar 18, 91Oct 13, 92[H01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0104,946 Battery separator with improved oxidation stabilityAbandonedOct 19, 09Apr 29, 10[H01M]
2005/0106,468 Battery separator with improved oxidation stabilityAbandonedDec 30, 04May 19, 05[H01M]
2004/0028,998 Nonwoven separator for a nickel-metal hydride batteryAbandonedAug 15, 03Feb 12, 04[H01M]
2003/0129,486 BATTERY SEPARATOR PROVIDED WITH A PLURALITY OF STUDS AND VERTICAL RIBSAbandonedAug 11, 99Jul 10, 03[H01M, B32B]
2003/0054,234 Multilayer separator for lead-acid batteriesAbandonedSep 20, 01Mar 20, 03[H01M]
2003/0054,235 Laminated multilayer separator for lead-acid batteriesAbandonedSep 20, 01Mar 20, 03[H01M]
5389471 Wettable battery separator for alkaline batteriesExpiredMar 28, 94Feb 14, 95[H01M]
5384211 Oxidation resistant enveloped separatorExpiredSep 27, 93Jan 24, 95[H01M]
5298348 Battery separator for nickel/metal hydride batteriesExpiredApr 16, 93Mar 29, 94[H01M]
5264304 Battery separators with T-shaped ribsExpiredSep 23, 91Nov 23, 93[H01M]
4927722 Separator for starter batteriesExpiredJul 28, 89May 22, 90[H01M]
4734344 Battery separatorExpiredMay 19, 86Mar 29, 88[H01M]
4403024 Battery separatorExpiredJan 11, 82Sep 06, 83[H01M]
4330602 Battery separatorExpiredJul 17, 80May 18, 82[H01M]
4327164 Battery separatorExpiredJul 25, 80Apr 27, 82[H01M]
4287276 Alkaline battery with separator of high surface areaExpiredJun 08, 79Sep 01, 81[H01M]
4285751 Method of forming an improved battery separatorExpiredFeb 29, 80Aug 25, 81[B29D, H01M]
4286030 Thermoset resin impregnated web and process of makingExpiredFeb 06, 80Aug 25, 81[H01M]
4265985 Lead acid battery with separator having long fibersExpiredMay 23, 80May 05, 81[H01M]
4264691 Battery interseparatorExpiredJul 13, 79Apr 28, 81[H01M]

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