Collateral for a security interest recorded Dec 8, 2022 (Wells Fargo Capital Finance, LLC).
Term ends Sep 27, 2037 · High confidence
20-year base term ends Sep 28, 2036
Filed Oct 1, 2020 as application 17/061,128 · Granted Sep 12, 2023
Base term plus 364 days of patent term adjustment (USPTO delay)
Today
2016
2037
Clock starts
Sep 28, 2016
Sep 28, 2016
Term ends
Sep 27, 2037
Sep 27, 2037
Granted
Sep 12, 2023
Sep 12, 2023
base term
patent term adjustment
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
364
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
4
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 364 days past its 20-year base term on prosecution delay. 0 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 Sep 28, 2016, when application PCT/US2016/054087, the earliest non-provisional in its chain, was filed (this one was filed Oct 1, 2020) | Sep 28, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +364 days, USPTO patent term adjustment record | Sep 27, 2037 | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 27, 2037 | High confidence |
This family
| Application PCT/US2016/054087 | PCT application no patent term | no patent term |
| US 10,836,863 | In force Nov 2036 | Nov 2036 |
| US 11,753,504 | this patent Sep 2037 | Sep 2037 |
| Application 18/358,198 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Nov 17, 2022 Reel 61804, frame 775 | Ray, Jacob G.; Hristopoulos, Tiffany; Manning, Steven C.; Oweimreen, Tariq S.; Powers, Scott E.; Senyurt, Askim | Ascend Performance Materials Operations LLC | Assignment of Assignor's Interest |
| Dec 8, 2022 Reel 62094, frame 172 | Ascend Performance Materials Operations LLC | Wells Fargo Capital Finance, LLC | Security Interest |
| Apr 10, 2025 Reel 70811, frame 705 | Bank Of America, N.a. | Wilmington Savings Fund Society, FSB | Security Interest |
| Dec 19, 2025 Reel 74007, frame 183 | Ascend Performance Materials Operations LLC | Wells Fargo Bank, National Association | Security Interest |
| Dec 23, 2025 Reel 74050, frame 90 | Wilmington Savings Fund Society, FSB | Ascend Performance Materials Operations LLC | Release of Security Interest |
| Dec 23, 2025 Reel 74056, frame 183 | Ascend Performance Materials Operations LLC | Wilmington Savings Fund Society, FSB | 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
Sep 2037
Term ends Sep 27, 2037. Maintenance fees still fall due before then
Note
The 364 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 2023 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.