Term ends May 22, 2036 · High confidence
20-year base term ends Dec 15, 2035
Held by Thyssenkrupp Polysius GmbH
Filed Jun 13, 2017 as application 15/535,501 · Granted Jul 16, 2019
Base term plus 159 days of patent term adjustment (USPTO delay)
Today
2015
2036
Clock starts
Dec 15, 2015
Dec 15, 2015
Term ends
May 22, 2036
May 22, 2036
Granted
Jul 16, 2019
Jul 16, 2019
base term
patent term adjustment
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
159
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
2
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 159 days past its 20-year base term on prosecution delay. 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 Dec 15, 2015, when application PCT/EP2015/079880, the earliest non-provisional in its chain, was filed (this one was filed Jun 13, 2017) | Dec 15, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +159 days, USPTO patent term adjustment record | May 22, 2036 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 22, 2036 | High confidence |
This family
| US 10,352,885 | this patent May 2036 | May 2036 |
1 of 2 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 |
|---|---|---|---|
| Aug 29, 2017 reel/frame not recorded | Enders, Michael | Thyssenkrupp Industrial Solutions AG | Assignment of Assignor's Interest |
| Aug 29, 2017 reel/frame not recorded | Enders, Michael | Thyssenkrupp AG | Assignment of Assignor's Interest |
| Aug 29, 2017 Reel 43433, frame 731 | Enders, Michael | Thyssenkrupp Industrial Solutions AG; Thyssenkrupp AG | Assignment of Assignor's Interest |
| Feb 19, 2025 Reel 70255, frame 339 | Thyssenkrupp Industrial Solutions AG | Thyssenkrupp Polysius GmbH | Change of Name |
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
May 2036
Term ends May 22, 2036. Maintenance fees still fall due before then
Note
The 159 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 2019 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.