Xerox Corporation
24,245Patents
9,414Active
24,245Granted
55Portfolio score
Filing activity: Apr 3, 1967 → Jun 17, 2024 · 3,973 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5493692A | Selective delivery of electronic messages in a multiple computer system based on context and environment of a user | Electricity | 1,543 | Expired |
| US5629980A | System for controlling the distribution and use of digital works | Electricity | 1,497 | Expired |
| US5715403A | System for controlling the distribution and use of digital works having attached usage rights where the usage rights are defined by a usage rights grammar | Physics | 1,458 | Expired |
| US4558413A | Software version management system | Emerging Cross-Sectional Technologies | 1,206 | Expired |
| US5008853A | Representation of collaborative multi-user activities relative to shared structured data objects in a networked workstation environment | Physics | 1,085 | Expired |
| US5072412A | User interface with multiple workspaces for sharing display system objects | Physics | 1,046 | Expired |
| US5692073A | Formless forms and paper web using a reference-based mark extraction technique | Physics | 1,025 | Expired |
| US5634012A | System for controlling the distribution and use of digital works having a fee reporting mechanism | Electricity | 998 | Expired |
| US5638443A | System for controlling the distribution and use of composite digital works | Electricity | 983 | Expired |
| US5220657A | Updating local copy of shared data in a collaborative system | Physics | 968 | Expired |
| US5826244A | Method and system for providing a document service over a computer network using an automated brokered auction | Physics | 861 | Expired |
| US6327590A | System and method for collaborative ranking of search results employing user and group profiles derived from document collection content analysis | Emerging Cross-Sectional Technologies | 773 | Expired |
| US5555376A | Method for granting a user request having locational and contextual attributes consistent with user policies for devices having locational attributes consistent with the user request | Electricity | 693 | Expired |
| US4265990A | Imaging system with a diamine charge transport material in a polycarbonate resin | Physics | 692 | Expired |
| US5696962A | Method for computerized information retrieval using shallow linguistic analysis | Emerging Cross-Sectional Technologies | 662 | Expired |
| US6330976A | Marking medium area with encoded identifier for producing action through network | Electricity | 657 | Expired |
| US5812865A | Specifying and establishing communication data paths between particular media devices in multiple media device computing systems based on context of a user or users | Electricity | 656 | Expired |
| US5603054A | Method for triggering selected machine event when the triggering properties of the system are met and the triggering conditions of an identified user are perceived | Electricity | 649 | Expired |
| US5675819A | Document information retrieval using global word co-occurrence patterns | Emerging Cross-Sectional Technologies | 643 | Expired |
| US5970490A | Integration platform for heterogeneous databases | Emerging Cross-Sectional Technologies | 642 | Expired |
| US5798752A | User interface having simultaneously movable tools and cursor | Physics | 622 | Expired |
| US6122520A | System and method for obtaining and using location specific information | Physics | 616 | Expired |
| US6570555B1 | Method and apparatus for embodied conversational characters with multimodal input/output in an interface device | Physics | 586 | Expired |
| US5611050A | Method for selectively performing event on computer controlled device whose location and allowable operation is consistent with the contextual and locational attributes of the event | Electricity | 582 | Expired |
| US5278980A | Iterative technique for phrase query formation and an information retrieval system employing same | Emerging Cross-Sectional Technologies | 578 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.