Term ended Jul 26, 2025 · High confidence
20-year base term ended Mar 31, 2024
Held by Synopsys, Inc.
Filed Aug 12, 2013 as application 13/965,110 · Granted Oct 3, 2017
Base term plus 482 days of patent term adjustment (USPTO delay)
Today
Term ended Jul 26, 2025
2004
2026
Clock starts
Mar 31, 2004
Mar 31, 2004
Term ended
Jul 26, 2025
Jul 26, 2025
Granted
Oct 3, 2017
Oct 3, 2017
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
482
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
3
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 482 days past its 20-year base term on prosecution delay. 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 Mar 31, 2004, when application 10/816,328, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2013) | Mar 31, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +482 days, USPTO patent term adjustment record | Jul 26, 2025 | 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 | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Jul 26, 2025 | High confidence |
This family
| US 8,533,716 | In force Mar 2028 | Mar 2028 |
| US 9,779,042 | this patent Jul 2025 | Jul 2025 |
| US 10,268,609 | In force Nov 2026 | Nov 2026 |
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
Note
The 482 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median 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.