Westech Engineering, Inc.
Records under this name other than the patents Westech Engineering, Inc. 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 10 patents it holds.
Back to Westech Engineering, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,101,072 | Phosphorous Removal System Term ended Term ended Jul 5, 2026 · High confidence | Term ended | Term ended Jul 5, 2026 | High confidence |
| US 7,223,347 | Apparatus and method for filtering fluids Term ended Term ended Nov 25, 2024 · From the USPTO record | Term ended | Term ended Nov 25, 2024 | From the USPTO record |
| US 7,435,351 | Filter apparatus backwash removal device and backwash removal method Term ended Term ended Jan 29, 2024 · From the USPTO record | Term ended | Term ended Jan 29, 2024 | From the USPTO record |
| US 8,017,018 | Phosphorus Removal Method Lapsed on the fee record Ended Sep 13, 2023 · High confidence | Lapsed on the fee record | Ended Sep 13, 2023 | High confidence |
| US 6,849,180 | Flow Splitting Weir Term ended Term ended Mar 10, 2023 · High confidence | Term ended | Term ended Mar 10, 2023 | High confidence |
| US 6,991,726 | Filter Having a Media Retaining Plate Term ended Term ended Jan 26, 2023 · High confidence | Term ended | Term ended Jan 26, 2023 | High confidence |
| US 6,830,684 | Integrated Liquid and Gas Distribution Device for Underdrain Block Laterals Term ended Term ended Sep 3, 2022 · High confidence | Term ended | Term ended Sep 3, 2022 | High confidence |
| US 7,192,521 | Filter Having a Media Retaining Plate Term ended Term ended Jul 1, 2022 · High confidence | Term ended | Term ended Jul 1, 2022 | High confidence |
| US 7,014,783 | Flow Splitting Weir Term ended Term ended Jun 13, 2022 · High confidence | Term ended | Term ended Jun 13, 2022 | High confidence |
| US 9,878,930 | Systems and methods for installing digester ballast Lapsed on the fee record Ended Jan 30, 2022 · From the USPTO record | Lapsed on the fee record | Ended Jan 30, 2022 | From the USPTO record |