Also listed on Keygene N.V., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 16, 2038 · High confidence
20-year base term ends Mar 7, 2038
Filed Dec 13, 2023 as application 18/538,856 · Granted May 12, 2026
Base term plus 284 days of patent term adjustment (USPTO delay)
Today
2018
2038
Clock starts
Mar 7, 2018
Mar 7, 2018
Term ends
Dec 16, 2038
Dec 16, 2038
Granted
May 12, 2026
May 12, 2026
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
284
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.
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 284 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are 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 Mar 7, 2018, when application PCT/US2018/021389, the earliest non-provisional in its chain, was filed (this one was filed Dec 13, 2023) | Mar 7, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +284 days, USPTO patent term adjustment record | Dec 16, 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 | Dec 16, 2038 | High confidence |
This family
| Application PCT/US2018/021389 | PCT application no patent term | no patent term |
| US 11,284,577 | In force Apr 2038 | Apr 2038 |
| US 11,844,323 | In force Mar 2038 | Mar 2038 |
| US 12,622,375 | this patent Dec 2038 | Dec 2038 |
| Application 19/675,075 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Jan 31, 2024 Reel 66313, frame 317 | Markosyan, Avetik; Ong, Seong Siang; Khazi, Fayaz; Jing, Runchun; Schauer, Stephen Ezra; Huang, Tengfang; Prakash, Indra; Hayes, Alec | Purcecircle USA Inc.; Keygene N.V.; The Coca-Cola Company | Assignment of Assignor's Interest |
| Jan 31, 2024 reel/frame not recorded | Schauer, Stephen Ezra; Huang, Tengfang; Jing, Runchun; Markosyan, Avetik; Ong, Seong Siang; Khazi, Fayaz; Hayes, Alec; Prakash, Indra | Purcecircle USA Inc. | Assignment of Assignor's Interest |
| Jan 31, 2024 reel/frame not recorded | Schauer, Stephen Ezra; Huang, Tengfang; Jing, Runchun; Markosyan, Avetik; Ong, Seong Siang; Khazi, Fayaz; Hayes, Alec; Prakash, Indra | Keygene N.V. | Assignment of Assignor's Interest |
| Jan 31, 2024 reel/frame not recorded | Schauer, Stephen Ezra; Huang, Tengfang; Jing, Runchun; Markosyan, Avetik; Ong, Seong Siang; Khazi, Fayaz; Hayes, Alec; Prakash, Indra | The Coca-Cola Company | 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
Dec 2038
Term ends Dec 16, 2038. Maintenance fees still fall due before then
Note
The 284 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.