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Ketoreductase Polypeptides for the Production of (R)-3-Hydroxythiolane

US 9,394,552 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Feb 15, 2024 (Innovatus Life Sciences Lending Fund I, LP).

Term ends Aug 24, 2028 · High confidence

Filed Jan 15, 2015 as application 14/597,996 · Granted Jul 19, 2016
Base term, 20 years from filing
Today
20 years from filing
2008 2028
Clock starts
Aug 24, 2008
Term ends
Aug 24, 2028
Granted
Jul 19, 2016
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,977,078, US 8,962,285, to Aug 24, 2028. The term already ends on or before that date, so the cap shortened nothing.
2 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.
11
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. 2 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Aug 24, 2008, when application 12/197,286, the earliest non-provisional in its chain, was filed (this one was filed Jan 15, 2015)Aug 24, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,977,078, US 8,962,285)resolves to Aug 24, 2028, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 24, 2028High confidence

This family

US 7,977,078In force
Aug 2028
Aug 2028
US 8,227,229In force
Aug 2028
Aug 2028
US 8,962,285In force
Aug 2028
Aug 2028
US 9,394,552this patent
Aug 2028
Aug 2028
US 9,932,615In force
Aug 2028
Aug 2028
US 10,385,371In force
Aug 2028
Aug 2028
US 10,851,397In force
Aug 2028
Aug 2028
US 11,427,841In force
Aug 2028
Aug 2028
8 of 11 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.
RecordedAssignorAssigneeConveyance
Feb 8, 2024
Reel 66418, frame 55
Liang, Jack; Jenne, Stephane J.; Mundorff, Emily; Lalonde, James; Voladri, Rama; Huisman, GjaltCodexis, Inc.Assignment of Assignor's Interest
Feb 9, 2024
Reel 66424, frame 616
Codexis, Inc.Pfizer, Inc.Assignment of Assignor's Interest
Feb 9, 2024
Reel 66424, frame 806
Pfizer, Inc.Codexis, Inc.Assignment of Assignor's Interest
Feb 15, 2024
Reel 66600, frame 650
Codexis, Inc.Innovatus Life Sciences Lending Fund I, LP, as Collateral AgentSecurity 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