Inventor
Liwei Cai
Inventor
CN
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOC04primary
LOC0425%
LOC1325%
G06FElectric digital data processing17%
G10LSpeech analysis techniques or speech synthesis17%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution17%
PatentTitleYear
D1086028Energy storage device2025D1086027Energy storage device2025D1079634Power supply2025D1077745Power supply2025D1076809Power supply202512,087,305Speech processing2024D1020258Electric toothbrush2024D1003048Electric toothbrush2023D1003049Electric toothbrush202311,682,400Speech processing2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2024Patents assigned to CHAOZHOU LEJIU PLASTIC CO LTD (3)· patent assignee history
2023–2024Patents assigned to AMAZON TECH INC (2)· patent assignee history
2023–2025Based in CN· patent location history
2023–2024Based in US· patent location history
2025Patents assigned to ENERGYWAVE TECH INC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ENERGYWAVE TECH INC | 5 | 2025 |
| CHAOZHOU LEJIU PLASTIC CO LTD | 3 | 2023–2024 |
| AMAZON TECH INC | 2 | 2023–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 8 | 2023–2025 |
| US | 2 | 2023–2024 |