Term ended Nov 9, 2026 · High confidence
20-year base term ended Nov 9, 2026
Held by Dialog Semiconductor Inc.
Filed May 7, 2007 as application 11/745,299 · Granted Oct 28, 2008
Base term, 20 years from filing
Today
Term ended Nov 9, 2026
2006
2026
Clock starts
Nov 9, 2006
Nov 9, 2006
Term ended
Nov 9, 2026
Nov 9, 2026
Granted
Oct 28, 2008
Oct 28, 2008
base term
after the term ends
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.
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Nov 9, 2006, when application 11/558,326, the earliest non-provisional in its chain, was filed (this one was filed May 7, 2007) | Nov 9, 2026 | 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 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Nov 9, 2026 | High confidence |
This family
| US 7,505,287 | In force Aug 2027 | Aug 2027 |
| US 7,443,700 | this patent Nov 2026 | Nov 2026 |
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 17, 2007 Reel 19565, frame 506 | Yan, Liang; Zheng, Junjie; Kesterson, John; Wang, Xiaoyan; Bui, Hien | Iwatt Inc. | Assignment of Assignor's Interest |
| Oct 6, 2009 Reel 23330, frame 187 | Iwatt Inc. | Silicon Valley Bank | Security Agreement |
| Mar 29, 2013 Reel 30112, frame 599 | Iwatt Inc. | Iwatt Inc. | Merger |
| Jun 6, 2013 Reel 30571, frame 636 | Silicon Valley Bank | Iwatt Inc. | Release of Security Interest |
| Mar 5, 2014 Reel 32391, frame 234 | Iwatt Inc. | Dialog Semiconductor, Inc. | Change of Name |
| Mar 11, 2014 Reel 32427, frame 733 | Dialog Semiconductor, Inc. | Dialog Semiconductor Inc. | Change of Name |
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.
Citations
17
later US patents cite this one
That is above the median 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.