Also listed on Tianma Micro-Electronics Co., Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jul 16, 2033 · High confidence
20-year base term ends May 20, 2034
Filed May 20, 2014 as application 14/281,897 · Granted Nov 29, 2016
Base term plus 81 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
May 20, 2014
May 20, 2014
Term ends
Jul 16, 2033
Jul 16, 2033
Granted
Nov 29, 2016
Nov 29, 2016
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
81
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 9,235,308.
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.
7
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 81 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 May 20, 2014, when this application, 14/281,897, was filed | May 20, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +81 days, USPTO patent term adjustment record | Aug 9, 2034 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,235,308) | capped to Jul 16, 2033 | 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 | Jul 16, 2033 | High confidence |
This family
| US 9,507,471 | this patent Jul 2033 | Jul 2033 |
| US 9,746,959 | In force no later than May 2034 | no later than May 2034 |
| Application 15/654,728 | Abandoned not computed | not computed |
| US 10,459,567 | In force Jul 2033 | Jul 2033 |
| Application 15/665,442 | Abandoned not computed | not computed |
| Application 15/665,438 | Abandoned not computed | not computed |
| US 10,409,416 | In force Jul 2033 | Jul 2033 |
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 20, 2014 reel/frame not recorded | Du, Lingxiao; Liu, Baoling; Ma, Jun; Yao, Qijun | Shanghai Tianma Micro-Electronics Co., Ltd. | Assignment of Assignor's Interest |
| May 20, 2014 reel/frame not recorded | Du, Lingxiao; Liu, Baoling; Ma, Jun; Yao, Qijun | Tianma Micro-Electronics Co., Ltd. | Assignment of Assignor's Interest |
| May 20, 2014 Reel 32927, frame 204 | Liu, Baoling; Du, Lingxiao; Yao, Qijun; Ma, Jun | Shanghai Tianma Micro-Electronics Co., Ltd.; Tianma Micro-Electronics Co., Ltd. | 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.
What's changing
Jul 2033
Term ends Jul 16, 2033. Maintenance fees still fall due before then
Note
The 81 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 9,235,308.
Citations
16
later US patents cite this one
That is top 25% of utility patents granted in 2016 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.