SRF Limited
Records under this name other than the patents SRF Limited 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 9 patents it holds.
Showing 1 to 4 of 4 · Back to SRF Limited
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,870,613 | Process for the preparation of 2,3,3,3-tetrafluoropropene Lapsed on the fee record Ended Dec 22, 2024 · From the USPTO record | Lapsed on the fee record | Ended Dec 22, 2024 | From the USPTO record |
| US 10,071,956 | Process for the preparation of dibenzenesulfonimide Lapsed on the fee record Ended Sep 11, 2022 · From the USPTO record | Lapsed on the fee record | Ended Sep 11, 2022 | From the USPTO record |
| US 9,376,379 | Process for the synthesis of tetrafluoroethanesulfonic acid Lapsed on the fee record Ended Jun 28, 2020 · From the USPTO record | Lapsed on the fee record | Ended Jun 28, 2020 | From the USPTO record |
| US 6,723,887 | Process for the production of difluoromethane Lapsed on the fee record Ended Apr 20, 2012 · From the USPTO record | Lapsed on the fee record | Ended Apr 20, 2012 | From the USPTO record |