UNOVA, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 1137
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5548201 Battery charging method and apparatus with thermal mass equalizationSep 13, 94Aug 20, 96[H02J]
5515215 Disk drive system with removable disk-drive unitsJun 02, 95May 07, 96[G11B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6271643 Battery pack having memoryExpiredFeb 24, 00Aug 07, 01[H02J]
6097567 Disk drive system having a removable moduleExpiredDec 31, 98Aug 01, 00[G11B]
6091571 Disk drive system having removable modulesExpiredDec 31, 98Jul 18, 00[G11B]
6075342 Fast battery charging system and methodExpiredDec 05, 97Jun 13, 00[H01M]
6043630 Fast battery charging system and methodExpiredJan 04, 99Mar 28, 00[H02J]
5883492 Battery pack having memoryExpiredApr 08, 97Mar 16, 99[H02J]
5883757 Disk drive system having data storage and conductor protecting featuresExpiredMay 29, 98Mar 16, 99[G11B]
5764434 Disk drive systemExpiredJun 02, 95Jun 09, 98[G11B]
5682277 Method for inserting and extracting a data storage device in a computer systemExpiredJun 02, 95Oct 28, 97[G11B]
5675232 Battery pack including electronic power saverExpiredMay 06, 96Oct 07, 97[H02J, H01M]
5602696 Removable disk drive system automatic retaining mechanismExpiredJun 02, 95Feb 11, 97[G11B]
5508599 Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioningExpiredOct 12, 93Apr 16, 96[H02J]
5204608 Battery pack including electronic power saverExpiredNov 07, 89Apr 20, 93[H02J, H01M, H07M]
5122914 Disk drive system with transportable carrier and mounting assemblyExpiredMar 26, 90Jun 16, 92[G11B]
4961043 Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioningExpiredOct 16, 89Oct 02, 90[H02J]
4912580 Information storage system with readily removable high capacity disk drive unitExpiredDec 30, 86Mar 27, 90[G11B]
4885523 Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioningExpiredMar 15, 88Dec 05, 89[H02J]
4845419 Automatic control means providing a low-power responsive signal, particularly for initiating data preservation operationExpiredOct 06, 87Jul 04, 89[H02J]
4737702 Battery charging control system particularly for hand held deviceExpiredDec 18, 86Apr 12, 88[H02J]
4716354 Automatic voltage regulator means providing a dual low power responsive and output-voltage-controlling regulator signal particularly for a plural source battery powered systemExpiredNov 12, 85Dec 29, 87[H02J]

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