Term ends Mar 11, 2027 · High confidence
20-year base term ended Sep 28, 2024
Held by Arkray, Inc.
Filed Apr 16, 2007 as application 10/574,085 · Granted Jan 15, 2013
Base term plus 894 days of patent term adjustment (USPTO delay)
Today
2004
2027
Clock starts
Sep 28, 2004
Sep 28, 2004
Term ends
Mar 11, 2027
Mar 11, 2027
Granted
Jan 15, 2013
Jan 15, 2013
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
894
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.
3
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 894 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 Sep 28, 2004, when application PCT/JP2004/014575, the earliest non-provisional in its chain, was filed (this one was filed Apr 16, 2007) | Sep 28, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +894 days, USPTO patent term adjustment record | Mar 11, 2027 | 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 | Mar 11, 2027 | High confidence |
This family
| US 8,354,112 | this patent Mar 2027 | Mar 2027 |
| US 9,353,395 | Term ended Sep 2025 | Sep 2025 |
2 of 3 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 |
|---|---|---|---|
| Mar 9, 2007 Reel 18990, frame 104 | Sode, Koji | Ultizyme International Ltd. | Assignment of Assignor's Interest |
| Mar 20, 2012 Reel 27894, frame 384 | Ultizyme International Ltd. | Arkray, Inc. | Assignment of Assignor's Interest |
| Apr 16, 2012 reel/frame not recorded | Ultizyme International Ltd. | Arkray, Inc. | Corrective Assignment to Correct the Receiving Party Data from Arkray, Inc. to Arkray, Inc. and Ultizyme International LTD. Previously Recorded on Reel 027894 Frame 0384. Assignor(S) Hereby Confirms the Assignment of Assignors Interest. |
| Apr 16, 2012 reel/frame not recorded | Ultizyme International Ltd. | Ultizyme International Ltd. | Corrective Assignment to Correct the Receiving Party Data from Arkray, Inc. to Arkray, Inc. and Ultizyme International LTD. Previously Recorded on Reel 027894 Frame 0384. Assignor(S) Hereby Confirms the Assignment of Assignors Interest. |
| Apr 16, 2012 Reel 28054, frame 738 | Ultizyme International Ltd. | Arkray, Inc.; Ultizyme International Ltd. | Corrective Assignment to Correct the Receiving Party Data from Arkray, Inc. to Arkray, Inc. and Ultizyme International LTD. Previously Recorded on Reel 027894 Frame 0384. Assignor(S) Hereby Confirms the Assignment of Assignors Interest. |
| Feb 13, 2023 Reel 62675, frame 251 | Ultizyme International Ltd. | Arkray, Inc. | 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
Mar 2027
Term ends Mar 11, 2027. No further fees fall due before then
Note
The 894 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
later US patents cite this one
That is above the median of utility patents granted in 2013 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.