Cengage Learning, Inc.
5Patents
5Active
5Granted
50Portfolio score
Filing activity: Aug 31, 2006 → Dec 21, 2023 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US12307919B1 | Apparatus and method for delivering adaptive educational content | Physics | 0 | Active |
| US12050880B1 | System and method for content creation | Physics | 0 | Active |
| US11314702B2 | Systems and methods for producing incremental revised content | Physics | 0 | Active |
| US10019909B2 | Freeform mathematical parsing and grading method and system | Physics | 0 | Active |
| US8949259B2 | Systems, methods, software, and interfaces for analyzing, mapping, and depicting search results in a topical space | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.