Term ends Jul 21, 2031 · High confidence
20-year base term ends Apr 10, 2029
Held by HFI Innovation Inc.
Filed Sep 29, 2011 as application 13/248,579 · Granted Feb 2, 2016
Base term plus 832 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Apr 10, 2009
Apr 10, 2009
Term ends
Jul 21, 2031
Jul 21, 2031
Granted
Feb 2, 2016
Feb 2, 2016
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
832
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
5
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 832 days past its 20-year base term on prosecution delay. 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 Apr 10, 2009, when application 12/384,950, the earliest non-provisional in its chain, was filed (this one was filed Sep 29, 2011) | Apr 10, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +832 days, USPTO patent term adjustment record | Jul 21, 2031 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | 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 | Jul 21, 2031 | High confidence |
This family
| US 8,077,670 | In force Mar 2030 | Mar 2030 |
| US 9,253,797 | this patent Jul 2031 | Jul 2031 |
| US 9,930,697 | In force Apr 2029 | Apr 2029 |
| US 10,757,737 | In force Apr 2029 | Apr 2029 |
| US 11,153,918 | In force Apr 2029 | Apr 2029 |
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 31, 2012 Reel 27621, frame 380 | Nokia Corporation | Nokia 2011 Patent Trust | Assignment of Assignor's Interest |
| Feb 1, 2012 Reel 27630, frame 294 | Nokia 2011 Patent Trust | 2011 Intellectual Property Asset Trust | Change of Name |
| Feb 21, 2012 Reel 27738, frame 643 | 2011 Intellectual Property Asset Trust | Core Wireless Licensing S.A.R.L | Assignment of Assignor's Interest |
| Oct 18, 2017 Reel 44901, frame 590 | Core Wireless Licensing S.A.R.L. | Conversant Wireless Licensing S.A R.L. | Change of Name |
| Aug 22, 2018 Reel 46897, frame 1 | Conversant Wireless Licensing S.A R.L. | Cppib Credit Investments, Inc. | Amended and Restated U.S. Patent Security Agreement (for Non-U.S. Grantors) |
| Apr 13, 2021 Reel 55910, frame 832 | Cppib Credit Investments Inc. | Conversant Wireless Licensing S.A R.L. | Release of Security Interest |
| May 2, 2023 Reel 63508, frame 309 | Conversant Wireless Licensing S.A R.L. | Conversant Wireless Licensing Ltd. | Assignment of Assignor's Interest |
| May 19, 2025 Reel 71292, frame 785 | Conversant Wireless Licensing Ltd. | MediaTek Inc. | Assignment of Assignor's Interest |
| Apr 16, 2026 Reel 75402, frame 42 | MediaTek Inc. | HFI Innovation Inc. | Assignment of Assignor's Interest |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jul 2031
Term ends Jul 21, 2031. Maintenance fees still fall due before then
Note
The 832 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
10
later US patents cite this one
That is above the median of utility patents granted in 2016 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.