Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1084999 | Wireless charger | — | 2025-07-22 |
| 12109338 | Germicidal lighting | Shelley S. Wald, Voravit Puvanakijjakorn, David Wang, Li Changyong, Zhou Tingting | 2024-10-08 |
| 12018871 | Energy efficient heat pump with valve system and counterflow arrangement | — | 2024-06-25 |
| 11696970 | Germicidal lighting | Shelley S. Wald, Voravit Puvanakijjakorn, David Wang, Li Changyong, Zhou Tingting | 2023-07-11 |
| 11612670 | Germicidal lighting | Shelley S. Wald, Voravit Puvanakijjakorn, David Wang, Li Changyong, Zhou Tingting | 2023-03-28 |
| 11433154 | Germicidal lighting | Shelley S. Wald, Voravit Puvanakijjakorn, David Wang, Li Changyong, Zhou Tingting | 2022-09-06 |
| 11400177 | Germicidal lighting | Shelley S. Wald, Voravit Puvanakijjakorn, David Wang, Li Changyong, Zhou Tingting | 2022-08-02 |
| 11236951 | Heat exchanger fin surface enhancement | — | 2022-02-01 |
| 11199319 | Hardscape fixtures and deployment | — | 2021-12-14 |
| 10989401 | Hardscape fixtures and deployment | — | 2021-04-27 |
| 10941924 | LED lighting methods and apparatus | Voravit Puvanakijjakorn | 2021-03-09 |
| 10614938 | W-containing R—Fe—B—Cu sintered magnet and quenching alloy | Hiroshi Nagata, Qin Lan | 2020-04-07 |
| 10381139 | W-containing R—Fe—B—Cu sintered magnet and quenching alloy | Hiroshi Nagata, Qin Lan | 2019-08-13 |
| 10115507 | Low-B bare earth magnet | Hiroshi Nagata | 2018-10-30 |