Hawker Energy Products, 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 8146

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6555265 Value regulated lead acid batteryNov 06, 00Apr 29, 03[H01M]
6534212 High performance battery and current collector thereforMay 05, 00Mar 18, 03[H01M]
5834134 Sealant gasketing plastic nut battery terminal sealMay 23, 96Nov 10, 98[H01M]
5686202 Stress resistant battery configurationOct 18, 95Nov 11, 97[H01M]
D383434 Stress resistant batteryOct 18, 95Sep 09, 97[1302]
5663015 Sealant gasketing plastic nut battery terminal sealOct 18, 95Sep 02, 97[H01M]
5637419 Up and through battery intercell weldJan 30, 96Jun 10, 97[H01M]
5389465 Snap fit battery case and methodJan 26, 94Feb 14, 95[H01M]
5380603 Battery terminal sealMar 12, 93Jan 10, 95[H07M]
5182178 Suppression of electrolyte leakage from the terminal of a lead-acid batteryMay 21, 92Jan 26, 93[H01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6815118 Valve regulated lead acid batteryExpiredJan 04, 03Nov 09, 04[H01M]
5356733 Battery acid deflectorExpiredOct 29, 93Oct 18, 94[H01M]
5120620 Binary lead-tin alloy substrate for lead-acid electrochemical cellsExpiredAug 24, 90Jun 09, 92[H01M]
4902532 Method for preparing lead-acid electrochemical cell electrode platesExpiredAug 03, 89Feb 20, 90[B05D]
4769299 High rate sealed lead-acid battery with ultrathin platesExpiredJun 27, 86Sep 06, 88[H01M]
4742295 Static conductivity testerExpiredOct 28, 85May 03, 88[G01R]
4648177 Method for producing a sealed lead-acid cellExpiredOct 21, 83Mar 10, 87[H01M]
4637966 Sealed lead-acid cellExpiredJul 28, 86Jan 20, 87[H01M]
4606982 Sealed lead-acid cell and methodExpiredMay 09, 85Aug 19, 86[H01M]
4592972 Vibration-resistant battery assemblyExpiredJul 22, 83Jun 03, 86[H01M]
4521498 Through-the-partition intercell connection and methodExpiredJul 22, 82Jun 04, 85[H01M]
4495259 Vibration resistant batteryExpiredFeb 11, 83Jan 22, 85[H01M]
4444854 Electrochemical cell having internal short inhibitorExpiredSep 14, 81Apr 24, 84[H01M]
4421832 Electrochemical cellExpiredAug 24, 81Dec 20, 83[H01M]
4414295 Battery separatorExpiredMay 06, 82Nov 08, 83[H01M]
4407911 Rechargeable electrochemical cell pack having resistance to impact and vibrationExpiredOct 01, 80Oct 04, 83[H01M]
4385100 Terminal apparatus for electrolytic deviceExpiredApr 19, 82May 24, 83[H01M]
4383011 Multicell recombining lead-acid batteryExpiredDec 29, 80May 10, 83[H01M]
4346022 Method and apparatus for preparing lead-acid battery pastesExpiredApr 13, 79Aug 24, 82[H01B]
4346151 Multicell sealed rechargeable batteryExpiredDec 29, 80Aug 24, 82[H01M]

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