Also listed on Ixys CH GmbH, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 20, 2029 · High confidence
20-year base term ended Jul 26, 2025
Held by Universal Electronics Inc.
Filed Jul 26, 2005 as application 11/190,162 · Granted Dec 21, 2010
Base term plus 1547 days of patent term adjustment (USPTO delay)
Today
2005
2029
Clock starts
Jul 26, 2005
Jul 26, 2005
Term ends
Oct 20, 2029
Oct 20, 2029
Granted
Dec 21, 2010
Dec 21, 2010
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
1,547
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.
2
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 1547 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 Jul 26, 2005, when this application, 11/190,162, was filed | Jul 26, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1547 days, USPTO patent term adjustment record | Oct 20, 2029 | 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 | Oct 20, 2029 | High confidence |
This family
| US 7,855,672 | this patent Oct 2029 | Oct 2029 |
| US 8,081,102 | Term ended no later than Jul 2025 | no later than Jul 2025 |
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 |
|---|---|---|---|
| Jul 26, 2005 Reel 16819, frame 30 | Provis, Adam P. G. | Zilog, Inc. | Assignment of Assignor's Interest |
| Sep 30, 2010 Reel 25066, frame 847 | Zilog, Inc. | Ixys CH GmbH | Assignment of Assignor's Interest |
| Feb 9, 2011 Reel 25779, frame 119 | Zilog, Inc. | Ixys CH GmbH | Corrective Assignment to Correct the Incorrect Inclusion of Application 11/731423 with the Other 39 Patent Documents Being Assigned and Previously Recorded on Reel 025066 Frame 0847.ASSIGNOR(S) Hereby Confirms the Sale and Assignment of the Patent Documents Listed in Annex a of the Recorded Patent Assignment |
| Mar 23, 2011 Reel 26006, frame 435 | Ixys CH GmbH | Uei Cayman Inc. | Assignment of Assignor's Interest |
| Apr 4, 2011 Reel 26074, frame 359 | Zilog, Inc. | Ixys CH GmbH | Corrective Assignment to Correct the Incorrect Inclusion of Application 11/731423 with the Other 39 Patent Document Beeing Assigned and Previously Recorded on Reel 025066 Frame 0847. Assignor(S) Hereby Confirms the Sale and Assignment of Patent Documents Listed in Annex a of the Recorded Patent Assignment. |
| Apr 28, 2016 Reel 38402, frame 250 | Uei Cayman Inc. | C.G. Development Limited | Assignment of Assignor's Interest |
| Apr 29, 2016 Reel 38416, frame 581 | C.G. Development Limited; Uei Cayman Inc. | Universal Electronics 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
Oct 2029
Term ends Oct 20, 2029. No further fees fall due before then
Note
The 1547 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2010 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.