Term ends Apr 5, 2027 · Medium confidence
20-year base term ends Apr 5, 2027
Why Medium: A parent in the chain could not be resolved.
Held by Eyepoint, Inc.
Filed Feb 7, 2020 as application 16/784,970 · Granted Nov 14, 2023
Base term plus 328 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2007
2027
Clock starts
Apr 5, 2007
Apr 5, 2007
Term ends
Apr 5, 2027
Apr 5, 2027
Granted
Nov 14, 2023
Nov 14, 2023
base term
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
328
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,253,094, US 10,329,357, US 10,597,452, US 10,604,569, US 11,136,389, US 7,973,142, US 8,524,235, US 8,999,325, US 9,926,367.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
7
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 328 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. No maintenance fee can end this term early. 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 Apr 5, 2007, when application 11/784,094, the earliest non-provisional in its chain, was filed (this one was filed Feb 7, 2020); a parent in its chain could not be resolved (the next row) | Apr 5, 2027 | 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 | +328 days, USPTO patent term adjustment record | Feb 27, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,253,094, US 10,329,357, US 10,597,452, US 10,604,569, US 11,136,389, US 7,973,142, US 8,524,235, US 8,999,325, US 9,926,367) | capped to Apr 5, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | Apr 5, 2027 | Medium confidence |
This family
| US 7,973,142 | In force Jun 2029 | Jun 2029 |
| US 8,524,235 | In force May 2027 | May 2027 |
| Application 13/958,990 | Abandoned not computed | not computed |
| US 9,926,367 | In force Apr 2027 | Apr 2027 |
| Application 15/894,442 | Abandoned not computed | not computed |
| US 11,814,425 | this patent Apr 2027 | Apr 2027 |
6 of 7 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 18, 2020 Reel 53817, frame 543 | Rotello, Rocco Jamie; Peters, Kevin Gene; Davis, Michael Glenn | Aerpio Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Sep 9, 2021 Reel 57448, frame 33 | Aerpio Pharmaceuticals, Inc. | Eyepoint Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Jan 26, 2026 Reel 74489, frame 618 | Eyepoint Pharmaceuticals, Inc. | Eyepoint, Inc. | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Apr 2027
Term ends Apr 5, 2027. No further fees fall due before then
Note
The 328 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,253,094, US 10,329,357, US 10,597,452, US 10,604,569, US 11,136,389, US 7,973,142, US 8,524,235, US 8,999,325, US 9,926,367.
Citations
4
later US patents cite this one
That is top 25% of utility patents granted in 2023 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.