Also listed on Intellectual Ventures Assets 84 LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Oct 15, 2020 (Intellectual Ventures Assets 91 LLC).
Term ends May 16, 2028 · High confidence
20-year base term ends Jan 12, 2027
Held by Mec Management, LLC
Filed Jan 12, 2007 as application 11/652,951 · Granted Jan 5, 2010
Base term plus 490 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Jan 12, 2007
Jan 12, 2007
Term ends
May 16, 2028
May 16, 2028
Granted
Jan 5, 2010
Jan 5, 2010
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
490
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 490 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 Jan 12, 2007, when this application, 11/652,951, was filed | Jan 12, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +490 days, USPTO patent term adjustment record | May 16, 2028 | 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 | May 16, 2028 | 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 |
|---|---|---|---|
| Mar 9, 2007 Reel 19012, frame 154 | Koike, Junichi | Tohoku University | Assignment of Assignor's Interest |
| Mar 9, 2007 Reel 19014, frame 972 | Kawakami, Hideaki | Advanced Interconnect Materials, LLC | Assignment of Assignor's Interest |
| Oct 12, 2007 Reel 20124, frame 940 | Kawakami, Hideaki | Advanced Interconnect Materials, LLC | Address Change of Receiving Party |
| Mar 21, 2011 Reel 26002, frame 918 | Tohoku University | Advanced Interconnect Materials, LLC | Assignment of Assignor's Interest |
| Mar 28, 2012 Reel 27945, frame 871 | Tohoku University | Advanced Interconnect Materials, LLC | Confirmatory Assignment |
| Apr 20, 2012 Reel 28083, frame 909 | Advanced Interconnect Materials, LLC | Altiam Services Ltd. LLC | Assignment of Assignor's Interest |
| Oct 22, 2015 Reel 36855, frame 346 | Altiam Services Ltd. LLC | Xenogenic Development Limited Liability Company | Merger |
| Aug 27, 2018 Reel 46717, frame 310 | Xenogenic Development Limited Liability Company | Intellectual Ventures Assets 84 LLC | Assignment of Assignor's Interest |
| Aug 23, 2019 Reel 50144, frame 82 | Bylas District Economic Enterprise LLC | Mec Management, LLC | Assignment of Assignor's Interest |
| Oct 15, 2020 Reel 54071, frame 566 | Bylas District Economic Enterprise, LLC | Intellectual Ventures Assets 91 LLC; Intellectual Ventures Assets 84 LLC | Security Interest |
| Oct 15, 2020 reel/frame not recorded | Bylas District Economic Enterprise, LLC | Intellectual Ventures Assets 91 LLC | Security Interest |
| Oct 15, 2020 reel/frame not recorded | Bylas District Economic Enterprise, LLC | Intellectual Ventures Assets 84 LLC | Security 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.
What's changing
May 2028
Term ends May 16, 2028. No further fees fall due before then
Note
The 490 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is below the median of utility patents granted in 2010 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.