Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647355 | Techniques for objectively measuring discrepancies in human value systems and applications therefor | Mark Marabella | 2003-11-11 |
| 6364667 | Techniques for mastering a body of knowledge by writing questions about the body of knowledge | Mark Marabella | 2002-04-02 |
| 5954516 | Method of using question writing to test mastery of a body of knowledge | — | 1999-09-21 |
| 4247995 | Language teaching method and apparatus | — | 1981-02-03 |