Also listed on National Tsing Hua University, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 14, 2032 · High confidence
20-year base term ends Sep 14, 2032
Filed Jul 10, 2014 as application 14/344,866 · Granted Oct 22, 2019
Base term, 20 years from filing
Today
2012
2032
Clock starts
Sep 14, 2012
Sep 14, 2012
Term ends
Sep 14, 2032
Sep 14, 2032
Granted
Oct 22, 2019
Oct 22, 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
None
Term adjustment
No prosecution delay on this record.
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.
31
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 is its 20-year base term, with no adjustment for 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 Sep 14, 2012, when application PCT/US2012/055534, the earliest non-provisional in its chain, was filed (this one was filed Jul 10, 2014) | Sep 14, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Sep 14, 2032 | High confidence |
This family
| US 8,236,154 | In force Sep 2030 | Sep 2030 |
| Application 12/277,772 | Abandoned not computed | not computed |
| Application 12/358,938 | Abandoned not computed | not computed |
| US 9,448,116 | In force Mar 2032 | Mar 2032 |
| US 8,744,222 | In force Feb 2032 | Feb 2032 |
| Application PCT/US2012/034525 | PCT application no patent term | no patent term |
| US 9,649,323 | In force Jan 2035 | Jan 2035 |
| Application PCT/US2012/053050 | PCT application no patent term | no patent term |
8 of 31 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 |
|---|---|---|---|
| Jun 12, 2014 Reel 33089, frame 348 | Pan, Richard Li-chern | DCB-USA LLC; Taipei Medical University | Assignment of Assignor's Interest |
| Jun 12, 2014 reel/frame not recorded | Pan, Richard Li-chern | DCB-USA LLC | Assignment of Assignor's Interest |
| Jun 12, 2014 reel/frame not recorded | Pan, Richard Li-chern | Taipei Medical University | Assignment of Assignor's Interest |
| Jun 14, 2014 Reel 33104, frame 644 | DCB-USA LLC; Taipei Medical University | Taipei Medical University | Assignment of Assignor's Interest |
| Mar 14, 2019 Reel 48609, frame 669 | Tseng, Fan-gang; Wu, Jen-kuei; Chen, Peng-chun | Taipei Medical University | Assignment of Assignor's Interest |
| Mar 19, 2019 Reel 48637, frame 231 | Taipei Medical University | Taipei Medical University; National Tsing Hua University | Assignment of Assignor's Interest |
| Mar 19, 2019 reel/frame not recorded | Taipei Medical University | Taipei Medical University | Assignment of Assignor's Interest |
| Mar 19, 2019 reel/frame not recorded | Taipei Medical University | National Tsing Hua University | 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
Sep 2032
Term ends Sep 14, 2032. Maintenance fees still fall due before then
Citations
12
later US patents cite this one
That is top 25% 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.