HDR Engineering, Inc.
Records under this name other than patents HDR Engineering, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 6 of 6 · Back to HDR Engineering, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,968,127 | Phosphorus release reactor for water treatment Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 11,345,624 | Phosphorus release reactor for water treatment Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 6,387,264 | Unified fermentation and thickening process Formerly held Term ended Term ended Dec 11, 2020 · From the USPTO record | Term ended | Term ended Dec 11, 2020 | From the USPTO record |
| US 5,755,965 | Cyclonic de-gasser Term ended Term ended no later than May 26, 2018 · Low confidence | Term ended | Term ended no later than May 26, 2018 | Low confidence |
| US 5,980,613 | Pressurized radon stripper Term ended Term ended no later than Nov 9, 2019 · Low confidence | Term ended | Term ended no later than Nov 9, 2019 | Low confidence |
| US D362,902 | Gasket Term ended | Term ended |