Concepts NREC, LLC
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
4
Ending by 2030
Nov 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Jan 14, 2027The maintenance fee for Overhung turbine and generator system with turbine cartridge (US 9,083,212) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
- 1 fee due Apr 20, 2027The maintenance fee for Fluid movement system and method for determining impeller blade angles for use therewith (US 9,163,516) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
- 2 fees due May 21 to 28, 2027 · next May 21
- 2 fees due Jun 26, 2027
- 1 fee due Jul 7, 2027The maintenance fee for High-flow-capacity centrifugal hydrogen gas compression systems, methods and components therefor (US 10,526,964) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
- 2 fees due Sep 17, 2027
- 1 fee due Oct 19, 2027The maintenance fee for High-flow-capacity centrifugal hydrogen gas compression systems, methods and components therefor (US 9,316,228) comes due Oct 19, 2027. Unpaid by Apr 19, 2028, it lapses early.
Recent changes
- 1 term has ended since Aug 17, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,640,745 | High-pressure fluid compression system utilizing cascading effluent energy recovery In force · From the USPTO record | In force | From the USPTO record | |
| US 8,506,237 | Radial-flow turbomachines having performance-enhancing features In force · From the USPTO record | In force | From the USPTO record | |
| US 8,112,245 | First-point distance parameter system and method for automatic grid generation In force · From the USPTO record | In force | From the USPTO record | |
| US 8,100,631 | Fluid-type absorption dynamometer having an enhanced power range In force · From the USPTO record | In force | From the USPTO record | |
| US 8,245,532 | Semi-closed air-cycle refrigeration system and a positive-pressure snow removal cyclone separator therefor In force · From the USPTO record | In force | From the USPTO record | |
| US 8,371,801 | Systems for improved fluid flows through a turbine In force · From the USPTO record | In force | From the USPTO record | |
| US 9,039,349 | Turbocompressor and System for a Supercritical-Fluid Cycle In force · High confidence | In force | High confidence | |
| US 10,526,964 | High-flow-capacity centrifugal hydrogen gas compression systems, methods and components therefor In force · From the USPTO record | In force | From the USPTO record | |
| US 8,974,184 | Turbomachinery Having Self-Articulating Blades, Shutter Valve, Partial-Admission Shutters, And/Or Variable-Pitch Inlet Nozzles In force · High confidence | In force | High confidence | |
| US 9,083,212 | Overhung turbine and generator system with turbine cartridge In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 40: 5 lapsed for an unpaid fee · 4 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
Every application published under this name has become a patent.