Term ended Oct 15, 2026 · High confidence
20-year base term ended Oct 18, 2025
Held by California Institute of Technology, Centre National de la Recherche Scientifique and Universite Blaise Pascal
Filed Jun 6, 2006 as application 11/422,564 · Granted Jul 21, 2009
Base term plus 362 days of patent term adjustment (USPTO delay)
Today
Term ended Oct 15, 2026
2005
2026
Clock starts
Oct 18, 2005
Oct 18, 2005
Term ended
Oct 15, 2026
Oct 15, 2026
Granted
Jul 21, 2009
Jul 21, 2009
base term
patent term adjustment
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
362
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.
18
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 362 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Oct 18, 2005, when application 11/253,360, the earliest non-provisional in its chain, was filed (this one was filed Jun 6, 2006) | Oct 18, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +362 days, USPTO patent term adjustment record | Oct 15, 2026 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 15, 2026 | High confidence |
This family
| Application 11/253,360 | Abandoned not computed | not computed |
| US 7,563,542 | this patent Oct 2026 | Oct 2026 |
| US 7,794,880 | In force Nov 2026 | Nov 2026 |
| Application 11/675,308 | Abandoned not computed | not computed |
| Application PCT/US2007/062243 | PCT application no patent term | no patent term |
| US 8,232,007 | In force Jan 2027 | Jan 2027 |
| Application PCT/US2007/062518 | PCT application no patent term | no patent term |
| Application PCT/US2007/063094 | PCT application no patent term | no patent term |
8 of 18 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 |
|---|---|---|---|
| Sep 14, 2006 reel/frame not recorded | Yazami, Rachid; Hamwi, Andre | California Institute of Technology | Assignment of Assignor's Interest |
| Sep 14, 2006 reel/frame not recorded | Yazami, Rachid; Hamwi, Andre | Centre National de la Recherche Scientifique | Assignment of Assignor's Interest |
| Sep 14, 2006 Reel 18253, frame 615 | Yazami, Rachid; Hamwi, Andre | California Institute of Technology; Centre National de la Recherche Scientifique | Assignment of Assignor's Interest |
| Jan 27, 2012 reel/frame not recorded | California Institute of Technology; Centre National de la Recherche Scientifique | California Institute of Technology | Assignment of Assignor's Interest |
| Jan 27, 2012 reel/frame not recorded | California Institute of Technology; Centre National de la Recherche Scientifique | Centre National de la Recherche Scientifique | Assignment of Assignor's Interest |
| Jan 27, 2012 reel/frame not recorded | California Institute of Technology; Centre National de la Recherche Scientifique | Universite Blaise Pascal | Assignment of Assignor's Interest |
| Jan 27, 2012 Reel 27609, frame 799 | California Institute of Technology; Centre National de la Recherche Scientifique | California Institute of Technology; Centre National de la Recherche Scientifique; Universite Blaise Pascal | Assignment of Assignor's Interest |
| Apr 29, 2014 Reel 32780, frame 300 | Darolles, Isabelle M. | California Institute of Technology | 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
Note
The 362 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
21
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
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.