Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148909 | Passenger-conveyor step-chain monitoring system | — | 2021-10-19 |
SD
Shingo Doi
Overall (2021): #264,974 of 548,734Top 50%
1
Patents 2021