Halfwave As
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
4
Ending by 2030
Jun 2028
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 Apr 29, 2027The maintenance fee for Apparatus and method for measuring the pressure inside a pipe or container (US 10,458,871) comes due Apr 29, 2027. Unpaid by Oct 29, 2027, it lapses early.
- 1 fee due Jul 7, 2027The maintenance fee for Apparatus and method for inspecting a pipeline (US 10,527,590) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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.
Showing 1 to 7 of 7
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,061,205 | Acoustic method and apparatus for detection and characterization of a medium In force · From the USPTO record | In force | From the USPTO record | |
| US 8,011,227 | Detection of ingress of water in an intermediate layer using acoustic resonance technology In force · From the USPTO record | In force | From the USPTO record | |
| US 7,975,548 | Acoustic thickness measurements using gas as a coupling medium In force · From the USPTO record | In force | From the USPTO record | |
| US 8,677,823 | Acoustic thickness measurements using gas as a coupling medium In force · From the USPTO record | In force | From the USPTO record | |
| US 10,458,871 | Apparatus and method for measuring the pressure inside a pipe or container In force · From the USPTO record | In force | From the USPTO record | |
| US 10,527,590 | Apparatus and method for inspecting a pipeline In force · From the USPTO record | In force | From the USPTO record | |
| US 11,585,789 | Method For Detecting Faults In Plates In force · High confidence | In force | High confidence |
Also on record, not counted in the 7: 1 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.