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 no later than Jul 18, 2027 · Medium confidence
20-year base term ends Apr 10, 2027
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Mec Management, LLC
Filed Apr 10, 2007 as application 11/784,879 · Granted Dec 15, 2009
Base term plus 99 days of patent term adjustment (USPTO delay)
Today
2007
2027
Clock starts
Apr 10, 2007
Apr 10, 2007
Ends no later than
Jul 18, 2027
Jul 18, 2027
Granted
Dec 15, 2009
Dec 15, 2009
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
99
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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 99 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 10, 2007, when this application, 11/784,879, was filed | Apr 10, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +99 days, USPTO patent term adjustment record | Jul 18, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Jul 18, 2027 | Medium confidence |
This family
| US 7,633,164 | this patent no later than Jul 2027 | no later than Jul 2027 |
| US 8,089,158 | Lapsed on the fee record Jan 2024 | Jan 2024 |
| US 8,084,860 | Lapsed on the fee record Dec 2023 | Dec 2023 |
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 |
|---|---|---|---|
| Jun 18, 2007 Reel 19459, frame 951 | Kawakami, Hideaki | Advanced Interconnect Materials, LLC | Assignment of Assignor's Interest |
| Jun 18, 2007 Reel 19459, frame 977 | Koike, Junichi | Tohoku University | 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 |
| 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
Jul 2027
Term ends no later than Jul 18, 2027. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 99 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Jul 18, 2027. We will not guess the cap.
Citations
15
later US patents cite this one
That is above the median of utility patents granted in 2009 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.