Inventor
CHIH-KUANG CHANG
Inventor
TW
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Cprimary
A47CChairs20%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons20%
C08JWorking-up20%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients20%
G06FElectric digital data processing10%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes10%
PatentTitleYear
12,357,102Air mattress and method of controlling the same202512,127,680Air cell device and air mattress system thereof202411,718,725Method of forming foam material202311,603,444Foaming composition and method of forming foam material202311,301,385Cache managing method and system based on session type2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2023Patents assigned to IND TECH RES INST (3)· patent assignee history
2022–2025Based in TW· patent location history
2024Patents assigned to WELLELL INC (1)· patent assignee history
2025Patents assigned to APEX MEDICAL CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IND TECH RES INST | 3 | 2022–2023 |
| APEX MEDICAL CORP | 1 | 2025 |
| WELLELL INC | 1 | 2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| TW | 5 | 2022–2025 |