Surf Technology As
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
3
Ending by 2030
Mar 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.
- 2 fees due Dec 4 to 13, 2026 · next Dec 4
- 1 fee due Apr 24, 2027The maintenance fee for Suppression of multiple scattering noise in pulse echo imaging (US 11,796,659) comes due Apr 24, 2027. Unpaid by Oct 25, 2027, it lapses early.
- 1 fee due Jul 30, 2027The maintenance fee for Methods and instrumentation for estimation of wave propagation and scattering parameters (US 11,885,917) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
- 2 fees due Sep 3 to 22, 2027 · next Sep 3
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.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,038,616 | Acoustic imaging by nonlinear low frequency manipulation of high frequency scattering and propagation properties In force · From the USPTO record | In force | From the USPTO record | |
| US 8,550,998 | Nonlinear elastic wave measurement and imaging with two-frequency elastic wave pulse complexes In force · From the USPTO record | In force | From the USPTO record | |
| US 8,182,428 | Dual frequency band ultrasound transducer arrays In force · From the USPTO record | In force | From the USPTO record | |
| US 10,578,725 | Nonlinear imaging with dual band pulse complexes In force · From the USPTO record | In force | From the USPTO record | |
| US 9,291,493 | Nonlinear imaging with dual band pulse complexes In force · From the USPTO record | In force | From the USPTO record | |
| US 10,310,061 | Ultrasound transducer and method of manufacturing In force · From the USPTO record | In force | From the USPTO record | |
| US 11,007,686 | Ultrasound transducer matching layers and method of manufacturing In force · From the USPTO record | In force | From the USPTO record | |
| US 10,879,867 | Multiple frequency band acoustic transducer arrays In force · From the USPTO record | In force | From the USPTO record | |
| US 11,275,006 | Ultrasound estimation of nonlinear bulk elasticity of materials In force · From the USPTO record | In force | From the USPTO record | |
| US 11,280,906 | Methods and instrumentation for estimation of wave propagation and scattering parameters In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 13: 5 lapsed for an unpaid fee. 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.
4 no status recorded