Term ends Sep 20, 2029 · High confidence
20-year base term ends Jun 13, 2028
Held by Kyoto University
Filed Jun 13, 2008 as application 12/157,967 · Granted Jul 3, 2012
Base term plus 464 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Jun 13, 2008
Jun 13, 2008
Term ends
Sep 20, 2029
Sep 20, 2029
Granted
Jul 3, 2012
Jul 3, 2012
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
464
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
8
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 464 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Jun 13, 2008, when this application, 12/157,967, was filed | Jun 13, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +464 days, USPTO patent term adjustment record | Sep 20, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 20, 2029 | High confidence |
This family
| US 8,211,697 | this patent Sep 2029 | Sep 2029 |
| Application 12/465,633 | Abandoned not computed | not computed |
| US 8,257,941 | In force Nov 2028 | Nov 2028 |
| US 9,213,999 | In force Jun 2027 | Jun 2027 |
| Application 12/564,836 | Abandoned not computed | not computed |
| Application 12/580,216 | Abandoned not computed | not computed |
| Application 12/685,569 | Abandoned not computed | not computed |
| Application 12/709,379 | Abandoned not computed | not computed |
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 21, 2009 Reel 22134, frame 437 | Sakurada, Kazuhiro; Ishikawa, Tetsuya; Masaki, Hideki; Takahashi, Shunichi | Bayer Yakuhin, Ltd. | Assignment of Assignor's Interest |
| Jan 21, 2009 Reel 22134, frame 634 | Bayer Yakuhin, Ltd. | Bayer Schering Pharma Aktiengesellschaft | Assignment of Assignor's Interest |
| Jan 21, 2009 Reel 22134, frame 849 | Bayer Schering Pharma Aktiengesellschaft | Izumi Bio, Inc. | Assignment of Assignor's Interest |
| Mar 23, 2009 Reel 22436, frame 471 | Bayer Schering Pharma Aktiengesellschaft | Izumi Bio, Inc. | Assignment of Assignor's Interest |
| Jul 17, 2009 Reel 22974, frame 46 | Izumi Bio, Inc. | Ipierian, Inc. | Change of Name |
| Jul 31, 2009 Reel 23042, frame 895 | Izumi Bio, Inc. | Ipierian, Inc. | Change of Name |
| Mar 7, 2011 Reel 25914, frame 102 | Ipierian, Inc. | Kyoto 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 2029
Term ends Sep 20, 2029. No further fees fall due before then
Note
The 464 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
105
later US patents cite this one
That is top 10% of utility patents granted in 2012 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.