Term ends Nov 22, 2037 · High confidence
20-year base term ends Nov 22, 2037
Held by Halozyme Hypercon, Inc.
Filed Nov 13, 2024 as application 18/946,268 · Granted Mar 10, 2026
Base term, 20 years from filing
Today
2017
2037
Clock starts
Nov 22, 2017
Nov 22, 2017
Term ends
Nov 22, 2037
Nov 22, 2037
Granted
Mar 10, 2026
Mar 10, 2026
base term
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,654,112, US 12,178,913, to Nov 22, 2037. The term already ends on or before that date, so the cap shortened nothing.
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.
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 0 of 2 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 Nov 22, 2017, when application PCT/US2017/063150, the earliest non-provisional in its chain, was filed (this one was filed Nov 13, 2024) | Nov 22, 2037 | 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 | Disclaimer resolved from the filed document (refs US 11,654,112, US 12,178,913) | resolves to Nov 22, 2037, no earlier than this term, so no change | High 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 | Nov 22, 2037 | High confidence |
This family
| US 11,654,112 | In force Sep 2040 | Sep 2040 |
| US 12,178,913 | In force Jan 2038 | Jan 2038 |
| US 12,569,445 | this patent Nov 2037 | Nov 2037 |
| Application 19/535,043 | Pending not computed | not computed |
4 of 5 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 |
|---|---|---|---|
| Jul 23, 2025 Reel 72193, frame 558 | Coffman, Chase; Charles, Lyndon; Brown, Paul; Dadon, Daniel Benjamin; Liu, Lisa; Robinson, Cory | Elektrofi, Inc. | Assignment of Assignor's Interest |
| Feb 2, 2026 Reel 73662, frame 717 | Elektrofi, Inc. | Halozyme Hypercon, 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
Nov 2037
Term ends Nov 22, 2037. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,654,112, US 12,178,913, ends no earlier than this term, so it caps nothing.
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.