Educational Testing Service
220Patents
164Active
220Granted
55Portfolio score
Filing activity: Jan 27, 1978 → Jan 4, 2023 · 41 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5259766A | Method and system for interactive computer science testing, anaylsis and feedback | Physics | 284 | Expired |
| US5827070A | System and methods for computer based testing | Emerging Cross-Sectional Technologies | 182 | Expired |
| US5059127A | Computerized mastery testing system, a computer administered variable length sequential testing system for making pass/fail decisions | Physics | 174 | Expired |
| US5211564A | Computerized figural response testing system and method | Emerging Cross-Sectional Technologies | 165 | Expired |
| US5565316A | System and method for computer based testing | Emerging Cross-Sectional Technologies | 148 | Expired |
| US5987302A | On-line essay evaluation system | Physics | 121 | Expired |
| US6181909A | System and method for computer-based automatic essay scoring | Physics | 118 | Expired |
| US6366759B1 | System and method for computer-based automatic essay scoring | Physics | 107 | Expired |
| US5991595A | Computerized system for scoring constructed responses and methods for training, monitoring, and evaluating human rater's scoring of constructed responses | Physics | 96 | Expired |
| US4978305A | Free response test grading method | Physics | 93 | Expired |
| US6526258B2 | Methods and systems for presentation and evaluation of constructed responses assessed by human evaluators | Emerging Cross-Sectional Technologies | 88 | Expired |
| US5513994A | Centralized system and method for administering computer based tests | Physics | 80 | Expired |
| US6000945A | System and method for computer based test assembly | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5011413A | Machine-interpretable figural response testing | Physics | 76 | Expired |
| US6658412B1 | Computer-based method and system for linking records in data files | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5657256A | Method and apparatus for administration of computerized adaptive tests | Physics | 70 | Expired |
| US6144838A | Tree-based approach to proficiency scaling and diagnostic assessment | Physics | 66 | Expired |
| US6115683A | Automatic essay scoring system using content-based techniques | Physics | 66 | Expired |
| US6484010B1 | Tree-based approach to proficiency scaling and diagnostic assessment | Physics | 54 | Expired |
| US7092987B2 | Remote computer capabilities querying and certification | Physics | 53 | Expired |
| US5001769A | Image processing system | Physics | 50 | Expired |
| US6259890A | System and method for computer based test creation | Physics | 50 | Expired |
| US8473278B2 | Systems and methods for identifying collocation errors in text | Physics | 49 | Active |
| US10559225B1 | Computer-implemented systems and methods for automatically generating an assessment of oral recitations of assessment items | Physics | 47 | Active |
| US6295439A | Methods and systems for presentation and evaluation of constructed responses assessed by human evaluators | Emerging Cross-Sectional Technologies | 47 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.