Patents per Year
Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12243613 | Voltage output test circuit, voltage divider output circuit, and memory | Anping Qiu | 2025-03-04 |
| 12113535 | Ring oscillator and test method | Anping Qiu | 2024-10-08 |
| 11855637 | Ring oscillator | Anping Qiu | 2023-12-26 |
| 11451219 | Delay circuit and delay structure | Weibing Shang, Anping Qiu, Kangling Ji | 2022-09-20 |
| D402903 | Timer | — | 1998-12-22 |
| D402902 | Timer | — | 1998-12-22 |
| 5812499 | Time setting control mechanism for a mechanical timer | — | 1998-09-22 |
| D352667 | Electronic timer | — | 1994-11-22 |
| D352472 | Mechanical timer | — | 1994-11-15 |