Pump Engineering, Inc.
Records under this name other than patents Pump Engineering, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Pump Engineering, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,139,740 | Apparatus for improving efficiency of a reverse osmosis system Formerly held Term ended Term ended Mar 19, 2019 · From the USPTO record | Term ended | Term ended Mar 19, 2019 | From the USPTO record |
| US 6,036,435 | Thrust bearing Formerly held Term ended Term ended Mar 26, 2018 · From the USPTO record | Term ended | Term ended Mar 26, 2018 | From the USPTO record |
| US 8,579,603 | Centrifugal pump Formerly held Lapsed on the fee record Ended Nov 12, 2017 · High confidence | Lapsed on the fee record | Ended Nov 12, 2017 | High confidence |
| US 4,255,081 | Centrifugal pump Term ended Term ended no later than Mar 10, 2001 · Low confidence | Term ended | Term ended no later than Mar 10, 2001 | Low confidence |
| US 4,922,708 | Starting system for turbine engines Formerly held Term ended Term ended no later than May 8, 2010 · Low confidence | Term ended | Term ended no later than May 8, 2010 | Low confidence |
| US 4,966,708 | Power recovery pump turbine Term ended Term ended no later than Oct 30, 2010 · Low confidence | Term ended | Term ended no later than Oct 30, 2010 | Low confidence |
| US 4,983,305 | Power recovery pump turbine Term ended Term ended no later than Jan 8, 2011 · Low confidence | Term ended | Term ended no later than Jan 8, 2011 | Low confidence |
| US 5,049,045 | Power recovery turbine pump Term ended Term ended no later than Sep 17, 2011 · Low confidence | Term ended | Term ended no later than Sep 17, 2011 | Low confidence |
| US 5,082,428 | Centrifugal pump Term ended Term ended no later than Jan 21, 2012 · Low confidence | Term ended | Term ended no later than Jan 21, 2012 | Low confidence |
| US 5,106,262 | Idler disk Term ended Term ended no later than Apr 21, 2012 · Low confidence | Term ended | Term ended no later than Apr 21, 2012 | Low confidence |