Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456973 | Automatic text grade level analyzer for a text processing system | Richard G. Carlgren, Walter Rosenbaum | 1984-06-26 |
| 4384329 | Retrieval of related linked linguistic expressions including synonyms and antonyms | Walter Rosenbaum | 1983-05-17 |