Also listed on Revian, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Aug 21, 2038 · Medium confidence
20-year base term ends Jul 28, 2036
Why Medium: A parent in the chain could not be resolved.
Held by Know Bio, LLC
Filed Jan 13, 2021 as application 17/148,090 · Granted Dec 30, 2025
Base term plus 754 days of patent term adjustment (USPTO delay)
Today
2016
2038
Clock starts
Jul 28, 2016
Jul 28, 2016
Term ends
Aug 21, 2038
Aug 21, 2038
Granted
Dec 30, 2025
Dec 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
754
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 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.
62
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 754 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are paid so far. 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 Jul 28, 2016, when application 15/222,199, the earliest non-provisional in its chain, was filed (this one was filed Jan 13, 2021); a parent in its chain could not be resolved (the next row) | Jul 28, 2036 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +754 days, USPTO patent term adjustment record | Aug 21, 2038 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 21, 2038 | Medium confidence |
This family
| Application 19/618,695 | Pending not computed | not computed |
| US 10,688,315 | In force Aug 2037 | Aug 2037 |
| US 10,525,275 | In force Oct 2037 | Oct 2037 |
| US 10,569,097 | In force Sep 2037 | Sep 2037 |
| US 11,524,173 | In force Jul 2036 | Jul 2036 |
| Application PCT/US2020/034287 | PCT application no patent term | no patent term |
| US 11,400,309 | In force Aug 2036 | Aug 2036 |
| US 11,617,895 | In force Jul 2036 | Jul 2036 |
8 of 62 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 |
|---|---|---|---|
| Apr 20, 2022 Reel 59647, frame 138 | Stasko, Nathan; Emerson, David T.; Cockrell, Adam; Hunter, F. Neal; Bergmann, Michael John; McDonald, Rebecca | Know Bio, LLC | Assignment of Assignor's Interest |
| Nov 6, 2023 Reel 65467, frame 839 | Medendorp, Nicholas William, JR.; Negley, Gerald H. | Know Bio, LLC | Assignment of Assignor's Interest |
| Apr 9, 2024 Reel 67045, frame 750 | Reighard, Katelyn P. | Photonmd, LLC | Assignment of Assignor's Interest |
| Apr 9, 2024 Reel 67046, frame 33 | Photonmd, LLC | Photonmd, Inc. | Entity of Conversion |
| Apr 10, 2024 Reel 67061, frame 943 | Photonmd, Inc. | Revian, Inc. | Change of Name |
| Apr 18, 2024 Reel 67155, frame 966 | Revian, Inc. | Know Bio, 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
Aug 2038
Term ends Aug 21, 2038. Maintenance fees still fall due before then
Note
The 754 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
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.