Collateral for a security interest recorded Oct 24, 2024 (Fifth Third Bank, National Association).
Term ends Jun 11, 2035 · High confidence
20-year base term ends Mar 25, 2035
Held by K&N Engineering, Inc.
Filed Mar 25, 2015 as application 14/668,772 · Granted Jul 11, 2017
Base term plus 78 days of patent term adjustment (USPTO delay)
Today
2015
2035
Clock starts
Mar 25, 2015
Mar 25, 2015
Term ends
Jun 11, 2035
Jun 11, 2035
Granted
Jul 11, 2017
Jul 11, 2017
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
78
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.
22
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 78 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 25, 2015, when this application, 14/668,772, was filed | Mar 25, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +78 days, USPTO patent term adjustment record | Jun 11, 2035 | 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 | Jun 11, 2035 | High confidence |
This family
| US 9,701,178 | this patent Jun 2035 | Jun 2035 |
| US 10,434,466 | In force no later than Jan 2037 | no later than Jan 2037 |
| Application PCT/US2016/024097 | PCT application no patent term | no patent term |
| US 10,632,411 | In force no later than Mar 2035 | no later than Mar 2035 |
| US 10,512,872 | In force Jun 2035 | Jun 2035 |
| Application PCT/US2017/041389 | PCT application no patent term | no patent term |
| US 11,161,074 | In force Jun 2035 | Jun 2035 |
| US 11,241,647 | In force no later than Mar 2035 | no later than Mar 2035 |
8 of 22 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 |
|---|---|---|---|
| Jun 17, 2015 Reel 35855, frame 607 | Williams, Steve; Wall, Jere James; Rosenbaum, Amir | K&N Engineering, Inc. | Assignment of Assignor's Interest |
| Oct 20, 2016 Reel 40436, frame 520 | K&N Engineering, Inc. | Keybank National Association | Security Interest |
| Oct 20, 2016 Reel 40436, frame 534 | K & N Engineering, Inc. | Keybank National Association | Security Interest |
| Sep 19, 2019 Reel 50436, frame 813 | Williams, Steve | K&N Engineering, Inc. | Assignment of Assignor's Interest |
| Sep 19, 2019 Reel 50438, frame 532 | Wall, Jere James | K&N Engineering, Inc. | Assignment of Assignor's Interest |
| Oct 17, 2022 Reel 61689, frame 682 | K & N Engineering, Inc. | Ankura Trust Company, LLC | Superpriority Patent Security Agreement |
| Feb 15, 2023 Reel 62760, frame 937 | Ankura Trust Company, LLC | K & N Engineering, Inc. | Release of Security Interest |
| Feb 15, 2023 Reel 62819, frame 480 | Keybank National Association | K & N Engineering, Inc. | Release of Security Interest |
| Oct 24, 2024 Reel 71008, frame 165 | K & N Engineering, Inc. | Fifth Third Bank, National Association, as Agent | Security Interest |
| Oct 25, 2024 Reel 69268, frame 13 | K & N Engineering, Inc. | Ankura Trust Company, LLC | Patent Security Agreement – Supplement No. 1 |
| May 8, 2026 Reel 75785, frame 57 | Ankura Trust Company, LLC | K & N Engineering, Inc. | Release of Security 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
Jun 2035
Term ends Jun 11, 2035. Maintenance fees still fall due before then
Note
The 78 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
14
later US patents cite this one
That is top 25% 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.