Storage Technology Corporation
974Patents
37Active
974Granted
47Portfolio score
Filing activity: Oct 17, 1974 → May 1, 2009 · 37 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6658526B2 | Network attached virtual data storage subsystem | Physics | 958 | Expired |
| US5403639A | File server having snapshot application data groups | Emerging Cross-Sectional Technologies | 917 | Expired |
| US5550816A | Method and apparatus for virtual switching | Electricity | 803 | Expired |
| US6732125B1 | Self archiving log structured volume with intrinsic data protection | Emerging Cross-Sectional Technologies | 428 | Expired |
| US5124987A | Logical track write scheduling system for a parallel disk drive array data storage subsystem | Physics | 388 | Expired |
| US5155845A | Data storage system for providing redundant copies of data on different disk drives | Physics | 379 | Expired |
| US5566170A | Method and apparatus for accelerated packet forwarding | Electricity | 376 | Expired |
| US5155835A | Multilevel, hierarchical, dynamically mapped data storage subsystem | Physics | 366 | Expired |
| US5842040A | Policy caching method and apparatus for use in a communication device based on contents of one data unit in a subset of related data units | Electricity | 345 | Expired |
| US4467421A | Virtual storage system and method | Physics | 340 | Expired |
| US7370220B1 | Method and apparatus for controlling power sequencing of a plurality of electrical/electronic devices | Emerging Cross-Sectional Technologies | 326 | Expired |
| US7627617B2 | Clustered hierarchical file services | Emerging Cross-Sectional Technologies | 320 | Expired |
| US5410667A | Data record copy system for a disk drive array data storage subsystem | Emerging Cross-Sectional Technologies | 317 | Expired |
| US6789161B1 | Method for controlling reutilization of data space in virtual tape system | Emerging Cross-Sectional Technologies | 301 | Expired |
| US5448511A | Memory stack with an integrated interconnect and mounting structure | Electricity | 286 | Expired |
| US4989206A | Disk drive memory | Emerging Cross-Sectional Technologies | 271 | Expired |
| US5598410A | Method and apparatus for accelerated packet processing | Electricity | 265 | Expired |
| US5459857A | Fault tolerant disk array data storage subsystem | Physics | 246 | Expired |
| US5581724A | Dynamically mapped data storage subsystem having multiple open destage cylinders and method of managing that subsystem | Physics | 241 | Expired |
| US5247638A | Apparatus for compressing data in a dynamically mapped virtual data storage subsystem | Physics | 230 | Expired |
| US5077736A | Disk drive memory | Emerging Cross-Sectional Technologies | 228 | Expired |
| US5210866A | Incremental disk backup system for a dynamically mapped data storage subsystem | Physics | 216 | Expired |
| US5193184A | Deleted data file space release system for a dynamically mapped virtual data storage subsystem | Physics | 216 | Expired |
| US4914656A | Disk drive memory | Physics | 210 | Expired |
| US5828847A | Dynamic server switching for maximum server availability and load balancing | Electricity | 201 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.