Term ends Nov 16, 2029 · High confidence
20-year base term ends Feb 19, 2029
Held by Photothera IP Holdings, Inc.
Filed Jan 10, 2022 as application 17/572,186 · Granted Sep 30, 2025
Base term plus 270 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Feb 19, 2009
Feb 19, 2009
Term ends
Nov 16, 2029
Nov 16, 2029
Granted
Sep 30, 2025
Sep 30, 2025
base term
patent term adjustment
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
270
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
11
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 270 days past its 20-year base term on prosecution delay. 0 of 1 maintenance fees are paid so far. 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 Feb 19, 2009, when application 12/389,294, the earliest non-provisional in its chain, was filed (this one was filed Jan 10, 2022) | Feb 19, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +270 days, USPTO patent term adjustment record | Nov 16, 2029 | 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 | 0 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 16, 2029 | High confidence |
This family
| Application 11/385,980 | Abandoned not computed | not computed |
| Application PCT/US2007/002474 | PCT application no patent term | no patent term |
| US 10,357,662 | In force Apr 2033 | Apr 2033 |
| Application PCT/US2009/037121 | PCT application no patent term | no patent term |
| Application 12/403,824 | Abandoned not computed | not computed |
| US 10,695,579 | In force Dec 2028 | Dec 2028 |
| Application PCT/US2011/023980 | PCT application no patent term | no patent term |
| US 11,273,319 | Lapsed on the fee record Mar 2026 | Mar 2026 |
8 of 11 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 2, 2025 Reel 72133, frame 40 | Detaboada, Luis; Streeter, Jackson; Bradley, Scott; Delapp, Scott; McNeill, Terry | Photothera, Inc. | Assignment of Assignor's Interest |
| Sep 2, 2025 Reel 72133, frame 161 | Photothera, Inc. | Photothera IP Holdings, Inc. | Assignment of Assignor's Interest |
| Sep 2, 2025 Reel 72133, frame 347 | De Taboada, Luis H. | Pthera LLC | 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
Nov 2029
Term ends Nov 16, 2029. Maintenance fees still fall due before then
Note
The 270 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.