Retech Systems LLC
Records under this name other than the patents Retech Systems LLC 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 8 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,470,305 | Method and apparatus for alternating pouring from common hearth in plasma furnace Term ended Term ended Nov 5, 2022 · From the USPTO record | Term ended | Term ended Nov 5, 2022 | From the USPTO record |
| US 7,637,307 | Adjustable Feed Chute and Associated Method of Feeding and Melting Term ended Term ended Oct 31, 2022 · High confidence | Term ended | Term ended Oct 31, 2022 | High confidence |
| US 6,712,875 | Method and Apparatus for Optimized Mixing in a Common Hearth in Plasma Furnace Term ended Term ended Sep 20, 2022 · High confidence | Term ended | Term ended Sep 20, 2022 | High confidence |
| US 6,868,896 | Method and Apparatus for Melting Titanium Using a Combination of Plasma Torches and Direct Arc Electrodes Term ended Term ended Sep 20, 2022 · High confidence | Term ended | Term ended Sep 20, 2022 | High confidence |
| US 6,904,955 | Method and Apparatus for Alternating Pouring from Common Hearth in Plasma Furnace Term ended Term ended Sep 20, 2022 · High confidence | Term ended | Term ended Sep 20, 2022 | High confidence |
| US 6,637,499 | Heat shield with adjustable discharge opening for use in a casting furnace Term ended Term ended Mar 23, 2022 · From the USPTO record | Term ended | Term ended Mar 23, 2022 | From the USPTO record |
| US 7,137,436 | Method and Apparatus for Melting Titanium Using a Combination of Plasma Torches and Direct Arc Electrodes Lapsed on the fee record Ended Nov 21, 2018 · High confidence | Lapsed on the fee record | Ended Nov 21, 2018 | High confidence |
| US 6,313,429 | Dual mode plasma arc torch for use with plasma arc treatment system and method of use thereof Term ended Term ended Aug 27, 2018 · From the USPTO record | Term ended | Term ended Aug 27, 2018 | From the USPTO record |
| US 7,503,376 | Method and Apparatus for Melting Titanium Using a Combination of Plasma Torches and Direct Arc Electrodes Lapsed on the fee record Ended Mar 17, 2017 · High confidence | Lapsed on the fee record | Ended Mar 17, 2017 | High confidence |
| US 6,452,129 | Plasma torch preventing gas backflows into the torch Lapsed on the fee record Ended Sep 17, 2014 · From the USPTO record | Lapsed on the fee record | Ended Sep 17, 2014 | From the USPTO record |