Term ends Dec 9, 2038 · High confidence
20-year base term ends Jun 6, 2038
Held by Pathai, Inc.
Filed Jun 6, 2018 as application 16/001,855 · Granted May 12, 2020
Base term plus 186 days of patent term adjustment (USPTO delay)
Today
2018
2038
Clock starts
Jun 6, 2018
Jun 6, 2018
Term ends
Dec 9, 2038
Dec 9, 2038
Granted
May 12, 2020
May 12, 2020
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
186
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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 186 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is 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 Jun 6, 2018, when this application, 16/001,855, was filed | Jun 6, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +186 days, USPTO patent term adjustment record | Dec 9, 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 | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 9, 2038 | High confidence |
This family
| US 10,650,520 | this patent Dec 2038 | Dec 2038 |
| US 11,195,279 | In force Aug 2038 | Aug 2038 |
| US 11,756,198 | In force no later than Jun 2038 | no later than Jun 2038 |
| US 11,908,139 | In force Jun 2038 | Jun 2038 |
| US 12,597,523 | In force Jun 2038 | Jun 2038 |
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 5, 2018 Reel 46794, frame 457 | Khosla, Aditya; Beck, Andrew H. | Pathai, Inc. | Assignment of Assignor's Interest |
| Mar 30, 2022 Reel 59450, frame 397 | Pathai, Inc. | Jpmorgan Chase Bank, N.a. | Security Interest |
| Dec 23, 2022 Reel 62195, frame 1 | Pathai, Inc. | Hercules Capital, Inc., as Agent | Security Interest |
| Dec 29, 2022 Reel 62250, frame 85 | Jpmorgan Chase Bank, N.a | Pathai, Inc. | Termination and Release of Intellectual Property Security Agreement at R/F 059450/0397 |
| Sep 18, 2025 Reel 72300, frame 731 | Hercules Capital, Inc., as Agent | Pathai, Inc. | Release of Security Interest |
| Sep 22, 2025 Reel 72322, frame 631 | Pathai, Inc. | Orbimed Royalty & Credit Opportunities IV, LP, as Administrative Agent for Secured Parties | Security Interest |
| Jul 28, 2026 Reel 75427, frame 613 | Orbimed Royalty & Credit Opportunities IV, LP, as Administrative Agent | Pathai, Inc. | 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
Dec 2038
Term ends Dec 9, 2038. Maintenance fees still fall due before then
Note
The 186 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
12
later US patents cite this one
That is top 25% of utility patents granted in 2020 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.