Term ends Dec 20, 2026 · Medium confidence
20-year base term ends Dec 20, 2026
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 9,334,536), so the cap could be lower.
Held by Keygene N.V.
Filed Apr 22, 2016 as application 15/136,224 · Granted Oct 3, 2017
Base term plus 29 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2006
2026
Clock starts
Dec 20, 2006
Dec 20, 2006
Term ends
Dec 20, 2026
Dec 20, 2026
Granted
Oct 3, 2017
Oct 3, 2017
base term
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
29
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,481,257, US 8,815,512, US 8,911,945, US 9,062,348, US 9,328,383, US 9,334,536, US 9,702,004.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
12
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 29 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 2 maintenance fees are paid so far. Confidence: Medium. 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 Dec 20, 2006, when application PCT/NL2006/000648, the earliest non-provisional in its chain, was filed (this one was filed Apr 22, 2016) | Dec 20, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +29 days, USPTO patent term adjustment record | Jan 18, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,481,257, US 8,815,512, US 8,911,945, US 9,062,348, US 9,328,383, US 9,334,536, US 9,702,004) | capped to Dec 20, 2026 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 20, 2026 | Medium confidence |
This family
| US 8,481,257 | In force Mar 2028 | Mar 2028 |
| US 8,815,512 | In force Dec 2026 | Dec 2026 |
| US 9,334,536 | In force no later than Dec 2026 | no later than Dec 2026 |
| US 8,911,945 | In force Dec 2026 | Dec 2026 |
| US 9,062,348 | In force Dec 2026 | Dec 2026 |
| US 9,328,383 | In force Dec 2026 | Dec 2026 |
| US 9,777,324 | this patent Dec 2026 | Dec 2026 |
| US 9,702,004 | In force Dec 2026 | Dec 2026 |
8 of 12 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
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
Dec 2026
Term ends Dec 20, 2026. No further fees fall due before then
Note
The 29 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,481,257, US 8,815,512, US 8,911,945, US 9,062,348, US 9,328,383, US 9,334,536, US 9,702,004.
Citations
169
later US patents cite this one
That is top 5% of utility patents granted in 2017 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.