Also listed on Analytical Graphics, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 5, 2031 · High confidence
20-year base term ends Apr 26, 2027
Filed Apr 26, 2007 as application 11/740,456 · Granted Jul 17, 2012
Base term plus 1440 days of patent term adjustment (USPTO delay)
Today
2007
2031
Clock starts
Apr 26, 2007
Apr 26, 2007
Term ends
Apr 5, 2031
Apr 5, 2031
Granted
Jul 17, 2012
Jul 17, 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
1,440
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.
14
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 1440 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 Apr 26, 2007, when this application, 11/740,456, was filed | Apr 26, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1440 days, USPTO patent term adjustment record | Apr 5, 2031 | 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 | Apr 5, 2031 | High confidence |
This family
| US 6,708,116 | Term ended Nov 2022 | Nov 2022 |
| US 7,050,002 | Term ended May 2025 | May 2025 |
| US 7,383,153 | In force Dec 2026 | Dec 2026 |
| US 7,224,311 | Term ended Sep 2025 | Sep 2025 |
| US 7,423,583 | Term ended May 2025 | May 2025 |
| US 7,609,907 | In force Apr 2028 | Apr 2028 |
| US 8,221,122 | this patent Apr 2031 | Apr 2031 |
| US 7,928,980 | In force Feb 2030 | Feb 2030 |
8 of 14 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 |
|---|---|---|---|
| May 25, 2007 Reel 19344, frame 185 | Neely, Thomas | Analytical Graphics, Inc. | Assignment of Assignor's Interest |
| Oct 8, 2009 Reel 23349, frame 441 | Analytical Graphics, Inc. | Manufacturers and Traders Trust Company | Notice of Security Interest in U.S. Patent Applications |
| Jun 19, 2017 Reel 42886, frame 263 | Analytical Graphics, Inc. | Silicon Valley Bank | Supplement to Intellectual Property Security Agreement |
| Aug 17, 2020 Reel 53512, frame 267 | Analytical Graphics, Inc. | Silicon Valley Bank | Amended and Restated Intellectual Property Security Agreement |
| Nov 13, 2020 Reel 54358, frame 936 | Manufacturers and Traders Trust Company | Analytical Graphics, Inc. | Release of Security Interest |
| Dec 1, 2020 Reel 54558, frame 786 | Silicon Valley Bank | Analytical Graphics, Inc. | Release of Security Interest Recorded at Reel/Frame 053512/0267 |
| Dec 1, 2020 Reel 54558, frame 809 | Silicon Valley Bank | Analytical Graphics, Inc. | Release of Security Interest Recorded at Reel/Frame 042886/0263 |
| Apr 27, 2022 Reel 59811, frame 883 | Analytical Graphics, Inc.; Ansys Government Initiatives, Inc. | Ansys Government Initiatives, Inc. | Merger and Change of Name |
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
Apr 2031
Term ends Apr 5, 2031. No further fees fall due before then
Note
The 1440 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
10
later US patents cite this one
That is above the median 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.