Term ended May 22, 2026 · High confidence
20-year base term ended Apr 22, 2025
Held by Alverix, Inc.
Filed Nov 16, 2005 as application 11/280,640 · Granted Apr 21, 2009
Base term plus 395 days of patent term adjustment (USPTO delay)
Today
Term ended May 22, 2026
2005
2026
Clock starts
Apr 22, 2005
Apr 22, 2005
Term ended
May 22, 2026
May 22, 2026
Granted
Apr 21, 2009
Apr 21, 2009
base term
patent term adjustment
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
395
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.
17
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 395 days past its 20-year base term on 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 Apr 22, 2005, when application 11/112,807, the earliest non-provisional in its chain, was filed (this one was filed Nov 16, 2005) | Apr 22, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +395 days, USPTO patent term adjustment record | May 22, 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 | term ended | High confidence |
| Computed term end | The steps above, in order | May 22, 2026 | High confidence |
This family
| Application 10/816,636 | Abandoned not computed | not computed |
| Application 11/019,183 | Abandoned not computed | not computed |
| Application 11/044,394 | Abandoned not computed | not computed |
| US 8,128,871 | In force Aug 2027 | Aug 2027 |
| US 7,521,259 | Term ended Jun 2026 | Jun 2026 |
| US 7,521,260 | this patent May 2026 | May 2026 |
| US 7,532,128 | Lapsed on the fee record May 2017 | May 2017 |
| Application 12/409,877 | Abandoned not computed | not computed |
8 of 17 applications in this family shown, earliest filings first. 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 10, 2006 Reel 17157, frame 368 | Petruno, Patrick T.; Brosnan, Michael J.; Petrilla, John F.; Zhou, Rong; Roitman, Daniel B.; Curry, Bo U. | Agilent Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 22, 2006 Reel 17206, frame 666 | Agilent Technologies, Inc. | Avago Technologies General IP Pte. Ltd. | Assignment of Assignor's Interest |
| May 15, 2008 Reel 20948, frame 582 | Avago Technologies General IP (Singapore) Pte. Ltd. | Alverix, Inc. | Assignment of Assignor's Interest |
| May 6, 2016 Reel 38632, frame 662 | Agilent Technologies, Inc. | Avago Technologies General IP (Singapore) Pte. Ltd. | Corrective Assignment to Correct the Assignee Name Previously Recorded at Reel: 017206 Frame: 0666. Assignor(S) Hereby Confirms the Assignment. |
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
Note
The 395 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
50
later US patents cite this one
That is top 25% 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.