Term ends Apr 10, 2029 · High confidence
20-year base term ends Apr 10, 2029
Held by HFI Innovation Inc.
Filed Feb 23, 2018 as application 15/903,855 · Granted Aug 25, 2020
Base term, 20 years from filing
Today
2009
2029
Clock starts
Apr 10, 2009
Apr 10, 2009
Term ends
Apr 10, 2029
Apr 10, 2029
Granted
Aug 25, 2020
Aug 25, 2020
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,253,797, to Apr 10, 2029. The term already ends on or before that date, so the cap shortened nothing.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 2 maintenance fees is 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 Feb 23, 2018) | Apr 10, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,253,797) | resolves to Apr 10, 2029, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 10, 2029 | High confidence |
This family
| US 8,077,670 | In force Mar 2030 | Mar 2030 |
| US 9,253,797 | In force Jul 2031 | Jul 2031 |
| US 9,930,697 | In force Apr 2029 | Apr 2029 |
| US 10,757,737 | this patent 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 |
|---|---|---|---|
| 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.
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Alerts on its grants, lapses and transfers.
What's changing
Apr 2029
Term ends Apr 10, 2029. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,253,797, ends no earlier than this term, so it caps nothing.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2020 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.