Inventor
LIFENG WU
Inventor
US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds50%
C08JWorking-up30%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients10%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers10%
PatentTitleYear
12,486,362Polyester polyol comprising an imide moiety and methods of manufacture thereof202512,267,643Speaker box202512,252,578Polyurethane foam composition comprising an aromatic polyester polyol compound and products made therefrom202512,202,926Polyurethane insulation foam composition comprising halogenated olefins and a tertiary amine compound202511,958,935Polyurethane insulation foam composition comprising a stabilizing compound202411,649,315Polyurethane insulation foam composition comprising halogenated olefins and a tertiary amine compound2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2025Patents assigned to HUNTSMAN INT LLC (5)· patent assignee history
2023–2025Based in US· patent location history
2025Patents assigned to AAC ACOUSTIC TECH SHENZHEN CO LTD (1)· patent assignee history
2025Patents assigned to AAC MICROTECH CHANGZHOU CO LTD (1)· patent assignee history
2025Based in CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUNTSMAN INT LLC | 5 | 2023–2025 |
| AAC ACOUSTIC TECH SHENZHEN CO LTD | 1 | 2025 |
| AAC MICROTECH CHANGZHOU CO LTD | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 5 | 2023–2025 |
| CN | 1 | 2025 |