Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12340369 | System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus | Chi Wah Lo, Hwai Sian Tsai | 2025-06-24 |
| 12056701 | System and method to protect privacy of Personal-Identification-Number entry on consumer mobile device and computing apparatus | Chi Wah Lo, Hwai Sian Tsai | 2024-08-06 |
| 11756033 | System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus | Chi Wah Lo, Hwai Sian Tsai | 2023-09-12 |
| 11288670 | System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus | Chi Wah Lo, Hwai Sian Tsai | 2022-03-29 |
| 10832243 | System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus | Chi Wah Lo, Hwai Sian Tsai | 2020-11-10 |
| 10521793 | System and method to protect privacy of personal-identification-number entry on consumer mobile device and computing apparatus | Hwai Sian Tsai, Chi Wah Lo | 2019-12-31 |