Term ends May 7, 2032 · High confidence
20-year base term ends Aug 16, 2031
Held by Sonicedge Ltd.
Filed Sep 10, 2014 as application 14/483,120 · Granted Jan 9, 2018
Base term plus 265 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Aug 16, 2011
Aug 16, 2011
Term ends
May 7, 2032
May 7, 2032
Granted
Jan 9, 2018
Jan 9, 2018
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
265
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,861,752, to May 7, 2032. The term already ends on or before that date, so the cap shortened nothing.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
4
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 265 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are paid so far. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Aug 16, 2011, when application PCT/US2011/047833, the earliest non-provisional in its chain, was filed (this one was filed Sep 10, 2014) | Aug 16, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +265 days, USPTO patent term adjustment record | May 7, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,861,752) | resolves to May 7, 2032, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 7, 2032 | High confidence |
This family
| Application PCT/US2011/047833 | PCT application no patent term | no patent term |
| US 8,861,752 | In force Oct 2032 | Oct 2032 |
| US 9,866,948 | this patent May 2032 | May 2032 |
| US 10,448,146 | In force Aug 2031 | Aug 2031 |
The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jan 29, 2019 Reel 48373, frame 217 | Empire Technology Development LLC | Crestline Direct Finance, L.p. | Security Interest |
| May 27, 2021 Reel 56366, frame 749 | Crestline Direct Finance, L.p. | Empire Technology Development LLC | Release of Security Interest |
| Aug 9, 2022 Reel 60755, frame 417 | Empire Technology Development, LLC. | Sonicedge Ltd. | Assignment of Assignor's Interest |
| Sep 22, 2025 Reel 72936, frame 464 | Crestline Direct Finance, L.P., as Collateral Agent | Empire Technology Development LLC | Release of Security Interest in Patents, Recorded on January 29, 2019 at Reel 048373 Frame 0217 |
| Jun 22, 2026 Reel 75799, frame 53 | Crestline Direct Finance, L.P., as Collateral Agent | Empire Technology Development LLC | Release of Security Interest in Patents, Recorded on January 29, 2019, at Reel/Frame 048373/0217 |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
May 2032
Term ends May 7, 2032. Maintenance fees still fall due before then
Note
The 265 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,861,752, ends no earlier than this term, so it caps nothing.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2018 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.