International Business Machines Corporation
163,546Patents
110,958Active
163,546Granted
60Portfolio score
Filing activity: Mar 11, 1968 → Oct 7, 2024 · 27,099 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5408409A | Image-directed robotic system for precise robotic surgery including redundant consistency checking | Emerging Cross-Sectional Technologies | 2,059 | Expired |
| US6226618A | Electronic content delivery system | Electricity | 1,726 | Expired |
| US5835079A | Virtual pointing device for touchscreens | Physics | 1,655 | Expired |
| US4092732A | System for recovering data stored in failed memory unit | Physics | 1,583 | Expired |
| US5991414A | Method and apparatus for the secure distributed storage and retrieval of information | Emerging Cross-Sectional Technologies | 1,523 | Expired |
| US6192472A | Method and apparatus for the secure distributed storage and retrieval of information | Emerging Cross-Sectional Technologies | 1,517 | Expired |
| US4727308A | FET power converter with reduced switching loss | Emerging Cross-Sectional Technologies | 1,496 | Expired |
| US5093912A | Dynamic resource pool expansion and contraction in multiprocessing environments | Physics | 1,379 | Expired |
| US5239647A | Data storage hierarchy with shared storage level | Emerging Cross-Sectional Technologies | 1,378 | Expired |
| US5241670A | Method and system for automated backup copy ordering in a time zero backup copy session | Physics | 1,361 | Expired |
| US6058454A | Method and system for automatically configuring redundant arrays of disk memory devices | Physics | 1,357 | Expired |
| US5241668A | Method and system for automated termination and resumption in a time zero backup copy process | Emerging Cross-Sectional Technologies | 1,339 | Expired |
| US6785783B2 | NUMA system with redundant main memory architecture | Physics | 1,331 | Expired |
| US5410700A | Computer system which supports asynchronous commitment of data | Physics | 1,307 | Expired |
| US4995035A | Centralized management in a computer network | Electricity | 1,303 | Expired |
| US6343324B1 | Method and system for controlling access share storage devices in a network environment by configuring host-to-volume mapping data structures in the controller memory for granting and denying access to the devices | Physics | 1,302 | Expired |
| US5417210A | System and method for augmentation of endoscopic surgery | Physics | 1,227 | Expired |
| US5813017A | System and method for reducing storage requirement in backup subsystems utilizing segmented compression and differencing | Emerging Cross-Sectional Technologies | 1,175 | Expired |
| US6203613A | Atomic layer deposition with nitrate containing precursors | Electricity | 1,154 | Expired |
| US5086401A | Image-directed robotic system for precise robotic surgery including redundant consistency checking | Emerging Cross-Sectional Technologies | 1,117 | Expired |
| US6026414A | System including a proxy client to backup files in a distributed computing environment | Emerging Cross-Sectional Technologies | 1,116 | Expired |
| US5544345A | Coherence controls for store-multiple shared data coordinated by cache directory entries in a shared electronic storage | Physics | 1,096 | Expired |
| US6327578A | Four-party credit/debit payment protocol | Physics | 1,080 | Expired |
| US6148412A | Availability and recovery of files using copy storage pools | Physics | 1,035 | Expired |
| US6021415A | Storage management system with file aggregation and space reclamation within aggregated files | Emerging Cross-Sectional Technologies | 1,019 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.