Collateral for a security interest recorded Jul 13, 2021 (The Bank of New York Mellon Trust Company, N.A.).
Term ends Aug 17, 2032 · High confidence
20-year base term ends Aug 17, 2032
Filed Mar 24, 2020 as application 16/828,448 · Granted Sep 13, 2022
Base term, 20 years from filing
Today
2012
2032
Clock starts
Aug 17, 2012
Aug 17, 2012
Term ends
Aug 17, 2032
Aug 17, 2032
Granted
Sep 13, 2022
Sep 13, 2022
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
5
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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 2 maintenance fees is 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 Aug 17, 2012, when application 13/588,996, the earliest non-provisional in its chain, was filed (this one was filed Mar 24, 2020) | Aug 17, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 17, 2032 | High confidence |
This family
| US 9,243,186 | In force Jun 2034 | Jun 2034 |
| Application PCT/US2013/054711 | PCT application no patent term | no patent term |
| US 10,041,002 | In force Oct 2032 | Oct 2032 |
| US 10,611,965 | In force no later than Aug 2032 | no later than Aug 2032 |
| US 11,441,077 | this patent Aug 2032 | Aug 2032 |
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 |
|---|---|---|---|
| Jul 2, 2021 Reel 56743, frame 148 | Quanci, John F.; Chun, Peter U.; Kaplarevic, Milos J. | Suncoke Technology and Development LLC | Assignment of Assignor's Interest |
| Jul 13, 2021 Reel 56846, frame 548 | Suncoke Technology and Development LLC | The Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Security Interest |
| Jul 25, 2025 Reel 72254, frame 272 | Suncoke Technology and Development LLC | Bank of America, N.A., as Administrative Agent | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Aug 2032
Term ends Aug 17, 2032. Maintenance fees still fall due before then
Citations
31
later US patents cite this one
That is top 5% of utility patents granted in 2022 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.