Also listed on Ats IP, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 31, 2034 · High confidence
20-year base term ends Jan 31, 2034
Filed May 27, 2016 as application 15/167,562 · Granted Feb 26, 2019
Base term plus 102 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
Jan 31, 2014
Jan 31, 2014
Term ends
Jan 31, 2034
Jan 31, 2034
Granted
Feb 26, 2019
Feb 26, 2019
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
102
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 8,956,905.
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.
3
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 102 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 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 Jan 31, 2014, when application 14/170,544, the earliest non-provisional in its chain, was filed (this one was filed May 27, 2016) | Jan 31, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +102 days, USPTO patent term adjustment record | May 13, 2034 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,956,905) | capped to Jan 31, 2034 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 31, 2034 | High confidence |
This family
| US 8,956,905 | In force Jan 2034 | Jan 2034 |
| US 9,353,445 | In force Jan 2034 | Jan 2034 |
| US 10,217,922 | this patent Jan 2034 | Jan 2034 |
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 |
|---|---|---|---|
| Feb 14, 2017 Reel 41248, frame 211 | Petkie, Ronald | Berken Energy LLC | Assignment of Assignor's Interest |
| Mar 17, 2022 Reel 59300, frame 352 | Berken Energy LLC | Ats IP, LLC | Assignment of Assignor's Interest |
| Jun 1, 2022 Reel 60076, frame 209 | Berken Energy LLC | Ats IP, LLC | Assignment of Assignor's Interest |
| May 12, 2025 Reel 71085, frame 805 | Ats IP, LLC | Advanced Thermovoltaic Systems, Corp. | 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.
What's changing
Jan 2034
Term ends Jan 31, 2034. Maintenance fees still fall due before then
Note
The 102 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 8,956,905.
Citations
1
later US patent cites 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.