Also listed on Encap Technologies LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 2, 2029 · High confidence
20-year base term ended Jul 19, 2026
Held by Intellectual Ventures II LLC
Filed Jul 19, 2006 as application 11/489,911 · Granted Apr 19, 2011
Base term plus 1171 days of patent term adjustment (USPTO delay)
Today
2006
2029
Clock starts
Jul 19, 2006
Jul 19, 2006
Term ends
Oct 2, 2029
Oct 2, 2029
Granted
Apr 19, 2011
Apr 19, 2011
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
1,171
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.
This patent's term runs 1171 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 Jul 19, 2006, when this application, 11/489,911, was filed | Jul 19, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1171 days, USPTO patent term adjustment record | Oct 2, 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 | Oct 2, 2029 | High confidence |
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 |
|---|---|---|---|
| Jul 19, 2006 Reel 18118, frame 978 | Neal, Griffith D. | Encap Technologies Inc. | Assignment of Assignor's Interest |
| Sep 21, 2012 Reel 29006, frame 372 | Neal, Griffith D. | Encap Technologies Inc. | Assignment of Assignor's Interest |
| Nov 1, 2012 Reel 29228, frame 379 | Encap Technologies Inc. | Intellectual Ventures Holding 88 LLC | Assignment of Assignor's Interest |
| Dec 28, 2012 Reel 29549, frame 649 | Neal, Griffith D. | Encap Technologies Inc. | Corrective Assignment to Correct the State of Incorporation Within the Assignment Document Previously Recorded on Reel 018118 Frame 0978. Assignor(S) Hereby Confirms the Assignment. |
| Jan 13, 2016 Reel 37482, frame 814 | Intellectual Ventures Holding 88 LLC | Nytell Software LLC | Merger |
| Dec 21, 2016 Reel 41115, frame 818 | Nytell Software LLC | Intellectual Ventures II LLC | Assignment of Assignor's Interest |
| Jun 30, 2017 Reel 43072, frame 958 | Encap Holding Company | Intellectual Ventures Holding 88 LLC | Assignment of Assignor's Interest |
| Aug 8, 2017 Reel 43232, frame 707 | Encap Technologies, Inc. | Encap Holding Company | Merger |
| Aug 8, 2017 Reel 43483, frame 475 | Encap Holding Company | Encap Technologies, Inc. | Change of Name |
| Aug 10, 2017 Reel 43254, frame 661 | Encap Technologies, Inc. | Intellectual Ventures II LLC | 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
Oct 2029
Term ends Oct 2, 2029. No further fees fall due before then
Note
The 1171 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
43
later US patents cite this one
That is top 25% of utility patents granted in 2011 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.