Sunwa Ltd.
Records under this name other than patents Sunwa Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 5 of 5 · Back to Sunwa Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,347,426 | Stair-climbing wheelchair carrier Term ended Term ended Nov 28, 2025 · From the USPTO record | Term ended | Term ended Nov 28, 2025 | From the USPTO record |
| US 6,158,536 | Stair-climbing vehicle for wheelchair Term ended Term ended Jun 12, 2017 · From the USPTO record | Term ended | Term ended Jun 12, 2017 | From the USPTO record |
| US 7,434,815 | Stair climbing wheelchair carrier Lapsed on the fee record Ended Oct 14, 2016 · From the USPTO record | Lapsed on the fee record | Ended Oct 14, 2016 | From the USPTO record |
| US 5,797,606 | Transporter for patient's emergency escape Term ended Term ended no later than Aug 25, 2018 · Low confidence | Term ended | Term ended no later than Aug 25, 2018 | Low confidence |
| US 5,996,767 | Wheelchair transporter for use on an escalator and an escalator control system for transporting the wheelchair transporter on the escalator Term ended Term ended no later than Dec 7, 2019 · Low confidence | Term ended | Term ended no later than Dec 7, 2019 | Low confidence |