Also listed on Miasole, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 10, 2034 · High confidence
20-year base term ends Dec 19, 2032
Filed Dec 19, 2012 as application 13/720,238 · Granted Aug 7, 2018
Base term plus 387 days of patent term adjustment (USPTO delay)
Today
2012
2034
Clock starts
Dec 19, 2012
Dec 19, 2012
Term ends
Jan 10, 2034
Jan 10, 2034
Granted
Aug 7, 2018
Aug 7, 2018
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
387
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
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 387 days past its 20-year base term on prosecution delay. 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 Dec 19, 2012, when this application, 13/720,238, was filed | Dec 19, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +387 days, USPTO patent term adjustment record | Jan 10, 2034 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 10, 2034 | High confidence |
This family
| US 10,043,921 | this patent Jan 2034 | Jan 2034 |
| US 10,211,351 | In force Dec 2032 | Dec 2032 |
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 |
|---|---|---|---|
| Jan 20, 2014 Reel 32092, frame 694 | Miasole | Hanergy Holding Group Ltd. | Assignment of Assignor's Interest |
| Jan 27, 2015 Reel 34826, frame 132 | Hanergy Holding Group Ltd. | Apollo Precision Fujian Limited | Assignment of Assignor's Interest |
| Feb 29, 2016 Reel 37855, frame 478 | Apollo Precision Fujian Limited | Beijing Apollo Ding Rong Solar Technology Co., Ltd. | Assignment of Assignor's Interest |
| Apr 7, 2016 Reel 38222, frame 319 | Corson, John; Austin, Alex; Tas, Robert; Mackie, Neil; Larsson, Mats; Demirkan, Korhan; Zhang, Weijie; Titus, Jochen; Sevanna, Swati; Zubeck, Robert; Dorn, Randy; Rairkar, Asit; Rulkens, Ron; Saproo, Ajay; Vitkavage, Dan | Miasole | Nunc Pro Tunc Assignment |
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
Jan 2034
Term ends Jan 10, 2034. Maintenance fees still fall due before then
Note
The 387 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2018 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.