Dongnan Elevator Co., Ltd.
Records under this name other than the patents Dongnan Elevator Co., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 5 patents it holds.
Showing 1 to 6 of 6 · Back to Dongnan Elevator Co., Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,840,396 | Fall prevention brake buffering system for high-speed mine lift Lapsed on the fee record Ended Dec 12, 2025 · From the USPTO record | Lapsed on the fee record | Ended Dec 12, 2025 | From the USPTO record |
| US 9,688,513 | Specific elevator anti-fall buffer based on flexible guidance Lapsed on the fee record Ended Jun 27, 2025 · From the USPTO record | Lapsed on the fee record | Ended Jun 27, 2025 | From the USPTO record |
| US 9,394,142 | Mining elevator lapping platform suitable for flexible guide rail and mining elevator lapping method Lapsed on the fee record Ended Jul 19, 2024 · From the USPTO record | Lapsed on the fee record | Ended Jul 19, 2024 | From the USPTO record |
| US 9,272,881 | Mining elevator Lapsed on the fee record Ended Mar 1, 2024 · From the USPTO record | Lapsed on the fee record | Ended Mar 1, 2024 | From the USPTO record |
| US 9,242,836 | Apparatus and method for automatically adjusting the tension of a flexible guide rail Lapsed on the fee record Ended Jan 26, 2024 · From the USPTO record | Lapsed on the fee record | Ended Jan 26, 2024 | From the USPTO record |
| US 9,156,655 | Mining Elevator Traction Cable Connecting Apparatus and Measuring Method Therefor Lapsed on the fee record Ended Oct 13, 2023 · High confidence | Lapsed on the fee record | Ended Oct 13, 2023 | High confidence |