Welldynamics, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
12
Ending by 2030
Dec 2026
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
No maintenance fee falls due on this company's record before Nov 14, 2027.
Recent changes
- 1 term has ended since Aug 16, 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 7,503,385 | Single line control module for well tool actuation In force · From the USPTO record | In force | From the USPTO record | |
| US 7,779,912 | Well tool having magnetically coupled position sensor In force · From the USPTO record | In force | From the USPTO record | |
| US 7,819,194 | Flow regulator for use in a subterranean well In force · From the USPTO record | In force | From the USPTO record | |
| US 7,673,683 | Well tool having magnetically coupled position sensor In force · From the USPTO record | In force | From the USPTO record | |
| US 7,926,581 | Well tool having enhanced packing element assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 9,464,507 | Casing valves system for selective well stimulation and control In force · From the USPTO record | In force | From the USPTO record | |
| US 7,950,461 | Screened valve system for selective well stimulation and control In force · From the USPTO record | In force | From the USPTO record | |
| US 7,861,788 | Casing valves system for selective well stimulation and control In force · From the USPTO record | In force | From the USPTO record | |
| US 7,785,080 | Downhole ram pump In force · From the USPTO record | In force | From the USPTO record | |
| US 8,157,016 | Fluid metering device and method for well tool In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 14: 12 lapsed for an unpaid fee · 37 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
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
2 no status recorded