Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10819700 | Client-side user authentication control based on stored history of incorrect passwords | — | 2020-10-27 |
| 10791058 | Hierarchical enforcement of service flow quotas | — | 2020-09-29 |
| 10764068 | Computer system employing challenge/response protocol with detection of non-unique incorrect responses | Charles W. Kaufman, Xuan Tang | 2020-09-01 |
| 10756904 | Efficient and secure distributed ledger maintenance | Charles W. Kaufman | 2020-08-25 |