Term ends Dec 4, 2035 · Medium confidence
20-year base term ends May 13, 2036
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 10,195,234), so the cap could be lower.
Held by Synlogic Operating Company, Inc.
Filed Feb 12, 2020 as application 16/788,458 · Granted Sep 9, 2025
Base term plus 1086 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2016
2036
Clock starts
May 13, 2016
May 13, 2016
Term ends
Dec 4, 2035
Dec 4, 2035
Granted
Sep 9, 2025
Sep 9, 2025
base term
after the term ends
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
1,086
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 10,195,234, US 11,618,894.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
61
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 1086 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 2 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 May 13, 2016, when application 15/154,934, the earliest non-provisional in its chain, was filed (this one was filed Feb 12, 2020) | May 13, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1086 days, USPTO patent term adjustment record | May 4, 2039 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,195,234, US 11,618,894) | capped to Dec 4, 2035 | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 4, 2035 | Medium confidence |
This family
| US 9,487,764 | In force Dec 2035 | Dec 2035 |
| Application 14/998,376 | Abandoned not computed | not computed |
| Application PCT/US2016/020530 | PCT application no patent term | no patent term |
| Application PCT/US2016/032565 | PCT application no patent term | no patent term |
| US 10,610,546 | In force no later than Jul 2036 | no later than Jul 2036 |
| Application PCT/US2016/032562 | PCT application no patent term | no patent term |
| Application PCT/US2016/034200 | PCT application no patent term | no patent term |
| US 9,688,967 | Lapsed on the fee record Jun 2025 | Jun 2025 |
8 of 61 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 |
|---|---|---|---|
| Aug 14, 2020 Reel 53503, frame 701 | Falb, Dean; Isabella, Vincent M.; Kotula, Jonathan W.; Miller, Paul F.; Rowe, Sarah; Millet, Yves | Synlogic, Inc. | Assignment of Assignor's Interest |
| Aug 14, 2020 Reel 53503, frame 856 | Synlogic, Inc.; Meerkat Merger Sub, Inc.; Synlogic Operating Company, Inc. | Synlogic Operating Company, Inc. | Merger and Change of Name |
| Sep 4, 2020 Reel 54147, frame 818 | Falb, Dean; Isabella, Vincent M.; Kotula, Jonathan W.; Miller, Paul F.; Millet, Yves; Rowe, Sarah | Synlogic, Inc. | Corrective Assignment to Correct the Entire Assignment Document Needs to Be Replaced with Correct Assignment Document Previously Recorded on Reel 053503 Frame 0701. Assignor(S) Hereby Confirms the Entire Assignment Document. |
| Oct 23, 2020 Reel 54404, frame 495 | Synlogic, Inc.; Meerkat Merger Sub, Inc. | Synlogic Operating Company, Inc. | Corrective Assignment to Correct the Name of the Conveying Parties to Be Synlogic, Inc. and Meerkat Merger Sub, Inc. Previously Recorded on Reel 053503 Frame 856. Assignor(S) Hereby Confirms the Merger and Name Change. |
| Oct 30, 2020 Reel 54257, frame 645 | Synlogic, Inc.; Meerkat Merger Sub, Inc. | Synlogic Operating Company, Inc. | Corrective Assignment to Correct the Name of the Conveying Parties to Be Synlogic, Inc. and Meerkat Merger Sub, Inc. Previously Recorded at Reel: 053503 Frame: 0856. Assignor(S) Hereby Confirms the Assignment. |
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
Dec 2035
Term ends Dec 4, 2035. Maintenance fees still fall due before then
Note
The 1086 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 10,195,234, US 11,618,894.
Citations
1
later US patent cites 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.