Term ends Mar 12, 2031 · High confidence
20-year base term ends Jun 11, 2028
Held by Lightsenseip LLP
Filed Jun 11, 2008 as application 12/136,943 · Granted May 29, 2012
Base term plus 1004 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Jun 11, 2008
Jun 11, 2008
Term ends
Mar 12, 2031
Mar 12, 2031
Granted
May 29, 2012
May 29, 2012
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
1,004
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.
5
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 1004 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 Jun 11, 2008, when this application, 12/136,943, was filed | Jun 11, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1004 days, USPTO patent term adjustment record | Mar 12, 2031 | 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 (reinstated) | High confidence |
| Computed term end | The steps above, in order | Mar 12, 2031 | High confidence |
This family
| US 8,187,256 | this patent Mar 2031 | Mar 2031 |
| US 8,915,907 | In force Sep 2028 | Sep 2028 |
| US 9,247,995 | In force Jun 2028 | Jun 2028 |
| US 9,351,794 | In force Jun 2028 | Jun 2028 |
4 of 5 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 |
|---|---|---|---|
| Oct 11, 2014 Reel 33933, frame 936 | Suckewer, Szymon | The Trustees of Princeton University | Assignment of Assignor's Interest |
| Oct 11, 2014 Reel 33933, frame 948 | Smits, Alexander | The Trustees of Princeton University | Assignment of Assignor's Interest |
| Jun 8, 2016 Reel 38847, frame 814 | Suckewer, Szymon; Smits, Alexander | Trustees of Princeton University | Assignment of Assignor's Interest |
| Jun 8, 2016 Reel 38848, frame 398 | Trustees of Princeton University | Suckewer, Szymon; Smits, Alexander | Assignment of Assignor's Interest |
| Jun 8, 2016 reel/frame not recorded | Trustees of Princeton University | Suckewer, Szymon | Assignment of Assignor's Interest |
| Jun 8, 2016 reel/frame not recorded | Trustees of Princeton University | Smits, Alexander | Assignment of Assignor's Interest |
| Jun 11, 2016 Reel 38890, frame 987 | Suckuwer, Szymon | Lightsenseip LLP | Assignment of Assignor's Interest |
| Jun 13, 2016 Reel 38899, frame 516 | Smits, Alexander, Smit | Lightsenseip LLP | Assignment of Assignor's Interest |
| Jun 28, 2016 Reel 39185, frame 821 | Suckewer, Szymon | Lightsense IP Ltd. | Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 038890 Frame 0987. Assignor(S) Hereby Confirms the Lightsenseip LTD. |
| Jun 28, 2016 Reel 39196, frame 53 | Smits, Alexander | Lightsense IP Ltd. | Corrective Assignment to Correct the Assignee Name Previously Recorded at Reel: 038899 Frame: 0516. Assignor(S) Hereby Confirms the Assignment. |
| Dec 10, 2020 Reel 54678, frame 573 | Lightsense IP Ltd. | Lightsense IP Ltd. | Change of Address Effective 08/24/2017 |
| Dec 10, 2020 Reel 54678, frame 678 | Lightsense IP Ltd. | Lightsense IP Ltd. | Change of Address Effective 05/08/2019 |
| Jan 21, 2021 Reel 55067, frame 514 | Lightsense IP Ltd. | Kreos Capital VI (UK) Limited | Security Interest |
| Dec 11, 2025 Reel 73185, frame 266 | Kreos Capital VI (UK) Limited | Lightsense IP Ltd. | Release of 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2031
Term ends Mar 12, 2031. No further fees fall due before then
Note
The 1004 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.