Hoffman & Sons Technologies, LLC
Records under this name other than patents Hoffman & Sons Technologies, LLC 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 Hoffman & Sons Technologies, LLC
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,545,593 | Direct processing of metallic ore concentrates into ferroalloys Lapsed on the fee record Ended Oct 1, 2021 · From the USPTO record | Lapsed on the fee record | Ended Oct 1, 2021 | From the USPTO record |
| US 9,404,165 | Producing of pig iron from iron-containing materials Lapsed on the fee record Ended Aug 2, 2020 · From the USPTO record | Lapsed on the fee record | Ended Aug 2, 2020 | From the USPTO record |
| US 7,985,389 | Direct processing of ferrotitania ores and sands Lapsed on the fee record Ended Jul 26, 2019 · From the USPTO record | Lapsed on the fee record | Ended Jul 26, 2019 | From the USPTO record |
| US 8,420,007 | Apparatus for direct smelting of zinc bearing compounds to produce metallic zinc Lapsed on the fee record Ended Apr 16, 2017 · From the USPTO record | Lapsed on the fee record | Ended Apr 16, 2017 | From the USPTO record |
| US 8,043,408 | Direct smelting of zinc bearing compounds to produce metallic zinc Lapsed on the fee record Ended Oct 25, 2015 · From the USPTO record | Lapsed on the fee record | Ended Oct 25, 2015 | From the USPTO record |