Also listed on Prevoty, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 25, 2033 · High confidence
20-year base term ends Mar 15, 2033
Held by Imperva, Inc.
Filed Mar 15, 2013 as application 13/839,622 · Granted Apr 12, 2016
Base term plus 224 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
Mar 15, 2013
Mar 15, 2013
Term ends
Oct 25, 2033
Oct 25, 2033
Granted
Apr 12, 2016
Apr 12, 2016
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
224
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 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.
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 224 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 15, 2013, when this application, 13/839,622, was filed | Mar 15, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +224 days, USPTO patent term adjustment record | Oct 25, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 25, 2033 | High confidence |
This family
| US 9,313,223 | this patent Oct 2033 | Oct 2033 |
| US 9,098,722 | In force Mar 2033 | Mar 2033 |
| Application PCT/US2014/030076 | PCT application no patent term | no patent term |
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 |
|---|---|---|---|
| Jan 30, 2015 Reel 34859, frame 858 | Anand, Kunal | Prevoty, Inc. | Assignment of Assignor's Interest |
| Jun 14, 2018 Reel 46095, frame 338 | De Bont, Benjamin; Hullinger, Jason | Prevoty, Inc. | Assignment of Assignor's Interest |
| Jul 27, 2018 Reel 46644, frame 181 | Hullinger, Jason; De Bont, Benjamin | Prevoty, Inc. | Assignment of Assignor's Interest |
| Jul 27, 2018 Reel 46490, frame 218 | Anand, Kunal; Bellanger, Julien | Prevoty, Inc. | Assignment of Assignor's Interest |
| Jan 15, 2019 Reel 48077, frame 753 | Prevoty, Inc. | Bank of America, N.A., as Collateral Agent | First Lien Intellectual Property Security Agreement |
| Jan 15, 2019 Reel 48077, frame 795 | Prevoty, Inc. | Goldman Sachs Bank USA, as Collateral Agent | Second Lien Intellectual Property Security Agreement |
| Feb 23, 2022 Reel 59353, frame 953 | Prevoty, Inc. | Prevoty, Inc. | Change of Assignee Address |
| May 2, 2022 Reel 59786, frame 372 | Prevoty, Inc. | Imperva, Inc. | Assignment of Assignor's Interest |
| Dec 1, 2023 Reel 65744, frame 45 | Bank of America, N.A., as Agent | Prevoty, Inc. | Release of First Lien Security Interest in Intellectual Property Recorded at R/F 048077/0753 |
| Dec 1, 2023 Reel 65744, frame 67 | Goldman Sach Bank USA, as Agent | Prevoty, Inc. | Release of Second Lien Security Interest in Intellectual Property Recorded at R/F 048077/0795 |
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.
What's changing
Oct 2033
Term ends Oct 25, 2033. Maintenance fees still fall due before then
Note
The 224 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2016 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.