Collateral for a security interest recorded Jan 9, 2013 (Bank of America, N.A.).
Term ends Jan 2, 2028 · High confidence
20-year base term ends Jan 2, 2028
Held by Diodes Incorporated
Filed Jan 2, 2008 as application 11/968,379 · Granted Aug 25, 2009
Base term, 20 years from filing
Today
2008
2028
Clock starts
Jan 2, 2008
Jan 2, 2008
Term ends
Jan 2, 2028
Jan 2, 2028
Granted
Aug 25, 2009
Aug 25, 2009
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.
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.
7
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 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 Jan 2, 2008, when this application, 11/968,379, was filed | Jan 2, 2028 | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Jan 2, 2028 | High confidence |
This family
| US 7,342,389 | Lapsed on the fee record Mar 2020 | Mar 2020 |
| US 7,684,482 | In force Nov 2028 | Nov 2028 |
| US 7,847,315 | In force Oct 2028 | Oct 2028 |
| US 7,683,553 | In force Jun 2027 | Jun 2027 |
| US 8,111,846 | In force May 2030 | May 2030 |
| US 7,579,910 | this patent Jan 2028 | Jan 2028 |
| US 7,932,536 | In force Oct 2027 | Oct 2027 |
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 |
|---|---|---|---|
| Feb 27, 2008 Reel 20572, frame 84 | Zhang, Wolf; Takagishi, Hideto; Wu, Alan | Pacifictech Microelectronics, Inc. | Assignment of Assignor's Interest |
| Nov 6, 2012 Reel 29246, frame 55 | Pacifictech Microelectronic, Inc. | Diodes Incorporated | Assignment of Assignor's Interest |
| Jan 9, 2013 Reel 29594, frame 472 | Diodes Incorporated, As Grantor | Bank of America, N.A., as Administrative Agent | Security Agreement |
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
Jan 2028
Term ends Jan 2, 2028. No further fees fall due before then
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2009 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.