Term ends May 17, 2036 · High confidence
20-year base term ends May 17, 2036
Held by Repligen Corporation
Filed Nov 15, 2017 as application 15/574,262 · Granted Jun 4, 2019
Base term, 20 years from filing
Today
2016
2036
Clock starts
May 17, 2016
May 17, 2016
Term ends
May 17, 2036
May 17, 2036
Granted
Jun 4, 2019
Jun 4, 2019
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
9
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 is its 20-year base term, with no adjustment for 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 May 17, 2016, when application PCT/US2016/032895, the earliest non-provisional in its chain, was filed (this one was filed Nov 15, 2017) | May 17, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | May 17, 2036 | High confidence |
This family
| US 9,746,391 | Lapsed on the fee record Aug 2025 | Aug 2025 |
| US 10,267,701 | In force Oct 2034 | Oct 2034 |
| US 10,309,818 | this patent May 2036 | May 2036 |
| US 10,502,650 | In force Oct 2034 | Oct 2034 |
| US 10,557,739 | In force no later than May 2036 | no later than May 2036 |
| US 11,274,954 | Lapsed on the fee record Mar 2026 | Mar 2026 |
| Application 17/667,202 | Abandoned not computed | not computed |
7 of 9 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 |
|---|---|---|---|
| Nov 15, 2017 Reel 44134, frame 387 | Gagne, Michael C.; Richards, Dean C.; Cates, Steven V. | Alphinity, LLC | Assignment of Assignor's Interest |
| Dec 8, 2020 Reel 54580, frame 754 | Alphinity, LLC | Repligen Corporation | Assignment of Assignor's Interest |
| Sep 19, 2024 Reel 68636, frame 413 | Alphinity, LLC | Repligen Corporation | 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
May 2036
Term ends May 17, 2036. Maintenance fees still fall due before then
Citations
8
later US patents cite this one
That is above the median of utility patents granted in 2019 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.