Also listed on Equispan LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 7, 2027 · High confidence
20-year base term ended May 12, 2025
Held by Aist Solutions Co.
Filed May 12, 2005 as application 11/127,979 · Granted Aug 14, 2012
Base term plus 664 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
May 12, 2005
May 12, 2005
Term ends
Mar 7, 2027
Mar 7, 2027
Granted
Aug 14, 2012
Aug 14, 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
664
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.
17
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 664 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 May 12, 2005, when this application, 11/127,979, was filed | May 12, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +664 days, USPTO patent term adjustment record | Mar 7, 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 7, 2027 | High confidence |
This family
| US 8,244,179 | this patent Mar 2027 | Mar 2027 |
| US 8,583,044 | Term ended May 2025 | May 2025 |
| US 8,548,381 | Term ended May 2025 | May 2025 |
| US 8,463,184 | Term ended May 2025 | May 2025 |
| US 8,971,803 | Term ended Jul 2025 | Jul 2025 |
| US 8,768,256 | Term ended May 2025 | May 2025 |
| US 9,160,419 | Term ended May 2025 | May 2025 |
| US 9,160,420 | Term ended May 2025 | May 2025 |
8 of 17 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 4, 2016 Reel 37893, frame 502 | Dua, Robin | Equispan LLC | Assignment of Assignor's Interest |
| Oct 24, 2016 Reel 40098, frame 399 | Equispan | Syndefense | Assignment of Assignor's Interest |
| Sep 27, 2024 Reel 68715, frame 807 | Syndefense Corp. | Aist Solutions Co. | Nunc Pro Tunc Assignment |
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.
What's changing
Mar 2027
Term ends Mar 7, 2027. No further fees fall due before then
Note
The 664 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
779
later US patents cite this one
That is top 1% 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.