Also listed on Nokia Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 20, 2026 · High confidence
20-year base term ended Oct 14, 2023
Held by HFI Innovation Inc.
Filed Oct 14, 2003 as application 10/683,352 · Granted Dec 2, 2008
Base term plus 1133 days of patent term adjustment (USPTO delay)
Today
2003
2026
Clock starts
Oct 14, 2003
Oct 14, 2003
Term ends
Nov 20, 2026
Nov 20, 2026
Granted
Dec 2, 2008
Dec 2, 2008
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,133
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
This patent's term runs 1133 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Oct 14, 2003, when this application, 10/683,352, was filed | Oct 14, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1133 days, USPTO patent term adjustment record | Nov 20, 2026 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 20, 2026 | High confidence |
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 |
|---|---|---|---|
| Oct 14, 2003 Reel 14612, frame 720 | Le, Huihua; Wu, Haitao; Jin, Yuehui; Zhang, Dongmei; Ma, Jian | Nokia Corporation | Assignment of Assignor's Interest |
| Sep 13, 2011 Reel 26894, frame 665 | Core Wireless Licensing S.A.R.L. | Nokia Corporation; Microsoft Corporation | Short Form Patent Security Agreement |
| Sep 13, 2011 reel/frame not recorded | Core Wireless Licensing S.A.R.L. | Nokia Corporation | Short Form Patent Security Agreement |
| Sep 13, 2011 reel/frame not recorded | Core Wireless Licensing S.A.R.L. | Microsoft Corporation | Short Form Patent Security Agreement |
| Oct 26, 2011 Reel 27120, frame 608 | Nokia Corporation | Nokia 2011 Patent Trust | Assignment of Assignor's Interest |
| Oct 26, 2011 Reel 27121, frame 353 | Nokia 2011 Patent Trust | 2011 Intellectual Property Asset Trust | Change of Name |
| Dec 16, 2011 Reel 27415, frame 106 | 2011 Intellectual Property Asset Trust | Core Wireless Licensing S.A.R.L. | Assignment of Assignor's Interest |
| Aug 30, 2016 Reel 39872, frame 112 | Nokia Corporation | Microsoft Corporation | Ucc Financing Statement Amendment - Deletion of Secured Party |
| Sep 11, 2017 Reel 43814, frame 125 | 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) |
| Mar 10, 2021 Reel 55546, frame 283 | Cppib Credit Investments Inc. | Conversant Wireless Licensing S.A R.L. | Release of Security Interest |
| May 1, 2023 Reel 63492, frame 197 | Conversant Wireless Licensing S.A R.L. | Conversant Wireless Licensing Ltd. | Assignment of Assignor's Interest |
| Jun 14, 2023 Reel 63947, frame 530 | 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
Nov 2026
Term ends Nov 20, 2026. No further fees fall due before then
Note
The 1133 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
45
later US patents cite this one
That is top 25% of utility patents granted in 2008 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.