Also listed on Nitto Pharmaceutical Industries, Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 23, 2035 · High confidence
20-year base term ends Jan 23, 2035
Held by Noster Inc.
Filed Dec 11, 2019 as application 16/710,302 · Granted Mar 23, 2021
Base term, 20 years from filing
Today
2015
2035
Clock starts
Jan 23, 2015
Jan 23, 2015
Term ends
Jan 23, 2035
Jan 23, 2035
Granted
Mar 23, 2021
Mar 23, 2021
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.
4
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 Jan 23, 2015, when application PCT/JP2015/051843, the earliest non-provisional in its chain, was filed (this one was filed Dec 11, 2019) | Jan 23, 2035 | 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 | Jan 23, 2035 | High confidence |
This family
| US 10,548,868 | In force no later than Aug 2035 | no later than Aug 2035 |
| US 10,952,983 | this patent Jan 2035 | Jan 2035 |
| US 12,491,173 | In force Mar 2035 | Mar 2035 |
3 of 4 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 |
|---|---|---|---|
| Apr 14, 2021 Reel 55920, frame 263 | Nitto Pharmaceutical Industries, Ltd. | Noster Inc. | Assignment of Assignor's Interest |
| Oct 18, 2024 reel/frame not recorded | Ogawa, Jun; Goto, Tsuyoshi; Kishino, Shigenobu; Takahashi, Nobuyuki; Yonejima, Yasunori; Kawada, Teruo | Kyoto University | Assignment of Assignor's Interest |
| Oct 18, 2024 reel/frame not recorded | Ogawa, Jun; Goto, Tsuyoshi; Kishino, Shigenobu; Takahashi, Nobuyuki; Yonejima, Yasunori; Kawada, Teruo | Nitto Pharmaceutical Industries, Ltd. | Assignment of Assignor's Interest |
| Oct 18, 2024 Reel 69207, frame 122 | Kyoto University | Noster Inc. | Corrective Assignment to Correct the the Property Type from Application Number to Patent Number for 10952983 and 10975397 Previously Recorded at Reel: 68851 Frame: 663. Assignor(S) Hereby Confirms the Assignment. |
| Oct 18, 2024 Reel 68942, frame 231 | Ogawa, Jun; Kishino, Shigenobu; Kawada, Teruo; Takahashi, Nobuyuki; Goto, Tsuyoshi; Yonejima, Yasunori | Kyoto University; Nitto Pharmaceutical Industries, 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
Jan 2035
Term ends Jan 23, 2035. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2021 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.