Term ends Dec 22, 2026 · High confidence
20-year base term ended Jul 25, 2025
Held by AMS-OSRAM Asia Pacific Pte. Ltd.
Filed Feb 25, 2008 as application 11/658,516 · Granted Mar 1, 2011
Base term plus 515 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Jul 25, 2005
Jul 25, 2005
Term ends
Dec 22, 2026
Dec 22, 2026
Granted
Mar 1, 2011
Mar 1, 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
515
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.
4
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 515 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 25, 2005, when application PCT/CH2005/000436, the earliest non-provisional in its chain, was filed (this one was filed Feb 25, 2008) | Jul 25, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +515 days, USPTO patent term adjustment record | Dec 22, 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 | In force | High confidence |
| Computed term end | The steps above, in order | Dec 22, 2026 | High confidence |
This family
| US 7,897,928 | this patent Dec 2026 | Dec 2026 |
| Application 12/987,669 | Abandoned not computed | not computed |
| US 9,209,327 | Lapsed on the fee record Dec 2023 | Dec 2023 |
3 of 4 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 |
|---|---|---|---|
| Jan 10, 2008 Reel 20339, frame 720 | Csem Centre Suisse d'Electronique et de Microtechnique S.A. | Mesa Imaging AG | Assignment of Assignor's Interest |
| Feb 28, 2008 Reel 20576, frame 413 | Cottier, Kaspar; Kaufmann, Rolf; Kunz, Rino E.; Oggier, Thierry; Voirin, Guy; Neukom, Simon; Lehmann, Michael | Csem Centre Suisse d'Electronique et de Microtechnique S.A. | Corrective Assignment to Correct the Application Number Previously Recorded on Reel 020552 Frame 0318. Assignor(S) Hereby Confirms the Re-Record Assignment to Correct the Application Number from 11/685,516 to 11/658,516.. |
| Dec 4, 2015 Reel 37211, frame 220 | Mesa Imaging AG | Heptagon Micro Optics Pte. Ltd. | Assignment of Assignor's Interest |
| Mar 6, 2019 Reel 48513, frame 922 | Heptagon Micro Optics Pte. Ltd. | AMS Sensors Singapore Pte. Ltd. | Change of Name |
| Nov 3, 2025 Reel 73476, frame 659 | AMS Sensors Singapore Pte. Ltd. | AMS-OSRAM Asia Pacific Pte. Ltd. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2026
Term ends Dec 22, 2026. No further fees fall due before then
Note
The 515 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
38
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.