Also listed on Peroxychem LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 6, 2033 · High confidence
20-year base term ends Sep 6, 2033
Held by Evonik Operations GmbH
Filed Sep 7, 2018 as application 16/125,204 · Granted Apr 21, 2020
Base term, 20 years from filing
Today
2013
2033
Clock starts
Sep 6, 2013
Sep 6, 2013
Term ends
Sep 6, 2033
Sep 6, 2033
Granted
Apr 21, 2020
Apr 21, 2020
base term
fee events
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,086,743, to Sep 6, 2033. The term already ends on or before that date, so the cap shortened nothing.
1 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.
24
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 3 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 Sep 6, 2013, when application 14/019,696, the earliest non-provisional in its chain, was filed (this one was filed Sep 7, 2018) | Sep 6, 2033 | 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 | Disclaimer resolved from the filed document (refs US 10,086,743) | resolves to Sep 6, 2033, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 6, 2033 | High confidence |
This family
| Application PCT/US2007/088409 | PCT application no patent term | no patent term |
| US 9,351,488 | Lapsed on the fee record May 2024 | May 2024 |
| US 9,018,142 | Lapsed on the fee record Apr 2023 | Apr 2023 |
| US 8,696,986 | Lapsed on the fee record Apr 2026 | Apr 2026 |
| US 8,575,075 | Lapsed on the fee record Nov 2021 | Nov 2021 |
| Application 61/726,297 | Provisional application no patent term | no patent term |
| US 8,865,066 | Lapsed on the fee record Oct 2026 | Oct 2026 |
| US 10,086,743 | Lapsed on the fee record Oct 2022 | Oct 2022 |
8 of 24 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 |
|---|---|---|---|
| Oct 9, 2018 Reel 47107, frame 309 | Rovison, John M., JR.; Brennan, James | FMC Corporation | Assignment of Assignor's Interest |
| Oct 9, 2018 Reel 47107, frame 441 | FMC Corporation | Peroxychem LLC | Assignment of Assignor's Interest |
| Oct 2, 2019 Reel 50605, frame 305 | Peroxychem LLC | Barclays Bank PLC, as Administrative Agent | Security Interest |
| Feb 3, 2020 Reel 51777, frame 957 | Barclays Bank PLC, as Administrative Agent | Peroxychem LLC | Release of Security Interest in Patents Recorded at R/F 050605/0305 |
| Mar 17, 2021 Reel 55625, frame 170 | Peroxychem LLC | Evonik Operations GmbH | Assignment of Assignor's 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 2033
Term ends Sep 6, 2033. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,086,743, ends no earlier than this term, so it caps nothing.
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2020 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.