Term ends Apr 22, 2033 · High confidence
20-year base term ends Sep 21, 2032
Held by Xilinx, Inc.
Filed Sep 21, 2012 as application 13/624,788 · Granted Apr 7, 2015
Base term plus 213 days of patent term adjustment (USPTO delay)
Today
2012
2033
Clock starts
Sep 21, 2012
Sep 21, 2012
Term ends
Apr 22, 2033
Apr 22, 2033
Granted
Apr 7, 2015
Apr 7, 2015
base term
patent term adjustment
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
213
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.
20
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 213 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 Sep 21, 2012, when this application, 13/624,788, was filed | Sep 21, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +213 days, USPTO patent term adjustment record | Apr 22, 2033 | 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 | Apr 22, 2033 | High confidence |
This family
| US 8,996,644 | In force Jul 2033 | Jul 2033 |
| Application 61/513,108 | Provisional application no patent term | no patent term |
| US 9,258,390 | In force Jul 2034 | Jul 2034 |
| US 9,003,053 | this patent Apr 2033 | Apr 2033 |
| US 9,600,429 | In force Oct 2033 | Oct 2033 |
| US 10,873,613 | In force no later than Sep 2032 | no later than Sep 2032 |
| US 9,674,318 | In force Nov 2031 | Nov 2031 |
| US 9,880,964 | In force Apr 2032 | Apr 2032 |
8 of 20 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 |
|---|---|---|---|
| Oct 18, 2012 Reel 29151, frame 285 | Pope, Steven L.; Riddoch, David J. | Solarflare Communications, Inc. | Assignment of Assignor's Interest |
| Jan 8, 2013 Reel 29636, frame 295 | Solarflare Communications Inc. | Solarflare Communications Inc. | Change of Address of the Assignee |
| Apr 6, 2016 Reel 38363, frame 589 | Solarflare Communications, Inc. | Pacific Western Bank | Security Interest |
| Mar 7, 2017 Reel 41902, frame 527 | Solarflare Communications, Inc. | Ally Bank | Security Interest |
| Jun 15, 2017 Reel 42820, frame 890 | Pacific Western Bank | Solarflare Communications, Inc. | Release of Security Interest |
| Jul 31, 2019 Reel 49918, frame 440 | Ally Bank | Solarflare Communications, Inc. | Release of Intellectual Property Security Agreement |
| Nov 25, 2019 Reel 51108, frame 209 | Solarflare Communications, Inc. | Xilinx, 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
Apr 2033
Term ends Apr 22, 2033. No further fees fall due before then
Note
The 213 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
59
later US patents cite this one
That is top 10% of utility patents granted in 2015 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.