The Patent Finder
US

Arginase Inhibitors as Therapeutics

US 11,389,464 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 19, 2031 · Medium confidence

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 9,440,995), so the cap could be lower.

Filed Feb 19, 2020 as application 16/794,905 · Granted Jul 19, 2022
Base term plus 123 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2011 2031
Clock starts
Oct 19, 2011
Term ends
Oct 19, 2031
Granted
Jul 19, 2022
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
123
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 10,098,902, US 10,603,330, US 9,233,985, US 9,440,995.
1 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 runs 123 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Oct 19, 2011, when application 13/276,806, the earliest non-provisional in its chain, was filed (this one was filed Feb 19, 2020)Oct 19, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+123 days, USPTO patent term adjustment recordFeb 19, 2032High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 10,098,902, US 10,603,330, US 9,233,985, US 9,440,995)capped to Oct 19, 2031Medium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 19, 2031Medium confidence

This family

US 9,233,985In force
Jun 2033
Jun 2033
US 9,440,995In force
no later than Oct 2031
no later than Oct 2031
US 10,098,902In force
Oct 2031
Oct 2031
US 10,603,330Lapsed on the fee record
Mar 2024
Mar 2024
US 11,389,464this patent
Oct 2031
Oct 2031
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.
RecordedAssignorAssigneeConveyance
Feb 24, 2020
Reel 52002, frame 57
Van Zandt, Michael; Jagdmann, Gunnar Erik, JRMars, IncorporatedAssignment 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited