DURACELL INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 262
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 2152
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 138
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1115
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D423253 Display stand for articlesFeb 02, 99Apr 25, 00[0604]
5595047 PackagingApr 17, 95Jan 21, 97[B65B]
5585435 Process for grafting polyolefinsSep 25, 95Dec 17, 96[C08L]
5544755 PackagingJan 17, 95Aug 13, 96[B65D]
5514947 Phase lead compensation circuit for an integrated switching regulatorJan 31, 95May 07, 96[G05F]
5478217 Reciprocating pump for pumping viscous materialsFeb 17, 94Dec 26, 95[F04B]
5428940 PackagingDec 03, 91Jul 04, 95[B65B]
5396177 Battery with electrochemical testerJul 22, 92Mar 07, 95[G01N]
5348726 Process for producing manganese dioxideSep 20, 93Sep 20, 94[C01G]
RE31413 Gas depolarized electrochemical cells and method of assemblyFeb 22, 80Oct 11, 83[H01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0029,002 Electrochemical cell closureAbandonedFeb 28, 03Feb 12, 04[H01M]
2003/0087,153 Electrode having multi-modal distribution of zinc-based particlesAbandonedNov 15, 02May 08, 03[H01M, C22C]
6025695 Battery operating systemExpiredMay 29, 98Feb 15, 00[H01M]
5955869 Battery pack and a method for monitoring remaining capacity of a battery packExpiredMay 29, 98Sep 21, 99[H02J]
5926419 Silicon layer arrangement for last mask programmabilityExpiredJul 15, 97Jul 20, 99[G11C]
5355089 Moisture barrier for battery with electrochemical testerExpiredJul 22, 92Oct 11, 94[G01N]
5277890 Process for producing manganese dioxideExpiredSep 28, 92Jan 11, 94[C01G]
4999264 Aqueous electrochemical cellExpiredNov 24, 89Mar 12, 91[H01M]
4891281 Electrochemical cells having low vapor pressure complexed SO.sub.2 electrolytesExpiredFeb 13, 86Jan 02, 90[H01M]
4891283 Insoluble mixed heavy metal polysulfide cathodesExpiredApr 17, 86Jan 02, 90[H01M]
D302661 Container for batteriesExpiredSep 02, 88Aug 08, 89[]
D302662 Container for batteriesExpiredSep 02, 88Aug 08, 89[]
4840644 Cell corrosion reductionExpiredJan 26, 88Jun 20, 89[H01M]
4833050 Electrochemical cellsExpiredNov 25, 87May 23, 89[H01M]
4824744 Method of making cell anodeExpiredJul 24, 86Apr 25, 89[H01M, B23K]
4803608 Rear lights for bicycles and other vehiclesExpiredDec 18, 86Feb 07, 89[F21V]
D299173 FlashlightExpiredSep 27, 85Dec 27, 88[]
4792081 Extruded container with dissimilar metal welding insertExpiredSep 13, 82Dec 20, 88[B23K]
4791036 Anode conductor for alkaline cellsExpiredJan 11, 88Dec 13, 88[A01M]
D296392 Expandable display rack frameExpiredMay 17, 85Jun 28, 88[]

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