Collateral for a security interest recorded Feb 14, 2023 (Bank of America, N.A.).
Term ends Dec 8, 2035 · High confidence
20-year base term ends Dec 8, 2035
Held by Unify GmbH & Co. KG
Filed Jun 11, 2020 as application 16/898,887 · Granted Jan 21, 2025
Base term plus 522 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2015
2035
Clock starts
Dec 8, 2015
Dec 8, 2015
Term ends
Dec 8, 2035
Dec 8, 2035
Granted
Jan 21, 2025
Jan 21, 2025
base term
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
522
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,186,281, US 10,720,175, US 9,691,412.
0 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.
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 522 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 2 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 Dec 8, 2015, when application 14/962,010, the earliest non-provisional in its chain, was filed (this one was filed Jun 11, 2020) | Dec 8, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +522 days, USPTO patent term adjustment record | May 13, 2037 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,186,281, US 10,720,175, US 9,691,412) | capped to Dec 8, 2035 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 8, 2035 | High confidence |
This family
| US 9,691,412 | In force Dec 2035 | Dec 2035 |
| US 10,186,281 | In force Dec 2035 | Dec 2035 |
| US 10,720,175 | In force Dec 2035 | Dec 2035 |
| US 12,205,613 | this patent Dec 2035 | Dec 2035 |
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 |
|---|---|---|---|
| Dec 21, 2020 Reel 54708, frame 576 | Totzke, Jurgen; Klug, Karl | Unify GmbH & Co. KG | Assignment of Assignor's Interest |
| Dec 21, 2020 Reel 54822, frame 1 | Unify GmbH & Co. KG | Unify Patente GmbH & Co. KG | Confidential Patent Agreement |
| Feb 14, 2023 Reel 62973, frame 194 | RingCentral, Inc. | Bank of America, N.A., as Collateral 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
Dec 2035
Term ends Dec 8, 2035. Maintenance fees still fall due before then
Note
The 522 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,186,281, US 10,720,175, US 9,691,412.
Citations
1
later US patent cites this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.