Also listed on Peroxychem LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Lapsed Oct 21, 2026 on the fee record · Low confidence
20-year base term ends Mar 12, 2033
Third maintenance fee unpaid; grace period ended. The USPTO has not yet posted the lapse.
Held by Evonik Operations GmbH
Filed Mar 12, 2013 as application 13/796,439 · Granted Oct 21, 2014
Base term, 20 years from filing
Today
Lapsed Oct 21, 2026
2013
2033
Clock starts
Mar 12, 2013
Mar 12, 2013
No longer in force
Oct 21, 2026
Oct 21, 2026
Granted
Oct 21, 2014
Oct 21, 2014
Term would have run to
Mar 12, 2033
Mar 12, 2033
base term
after the term ends
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.
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.
24
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Mar 12, 2033: its 20-year base term, with no adjustment for prosecution delay. Confidence: Low. 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 12, 2013, when this application, 13/796,439, was filed | Mar 12, 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 | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case" | lapsed Oct 21, 2026 | Low confidence |
| Computed term end | The steps above, in order | Oct 21, 2026 | Low 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 | this patent 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 |
|---|---|---|---|
| May 7, 2013 Reel 30362, frame 156 | Rovison, John M.; Mittiga, Ricky; Lapham, Donald; An, Weidong | FMC Corporation | Assignment of Assignor's Interest |
| Mar 3, 2014 Reel 32379, frame 931 | Peroxychem LLC | Macquarie US Trading LLC | Short Form Patent Security Agreement |
| Mar 31, 2014 Reel 32558, frame 681 | FMC Corporation | Peroxychem LLC | Assignment of Assignor's Interest |
| Oct 21, 2015 Reel 36847, frame 594 | Peroxychem LLC | Bank of America, N.A., as Administrative Agent | Security Interest |
| Nov 4, 2015 Reel 36953, frame 766 | Macquarie US Trading LLC, as Collateral Agent | Peroxychem LLC | Release of Security Interest |
| Oct 2, 2019 Reel 50605, frame 305 | Peroxychem LLC | Barclays Bank PLC, as Administrative Agent | Security Interest |
| Oct 2, 2019 Reel 50606, frame 329 | Bank of America, N.A., as Agent | Peroxychem LLC | Release of 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 55623, frame 657 | 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.
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2014 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.