The Patent Finder
US

RNA-Guided Nucleases and Active Fragments and Variants Thereof and Methods of Use

US 12,624,369 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Lifeedit, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends May 9, 2043 · Medium confidence

Why Medium: A parent in the chain could not be resolved.

Filed Jun 28, 2022 as application 17/851,887 · Granted May 12, 2026
Base term plus 746 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2021 2043
Clock starts
Apr 23, 2021
Term ends
May 9, 2043
Granted
May 12, 2026
base term patent term adjustment 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
746
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.
8
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 746 days past its 20-year base term on prosecution delay. 0 of 3 maintenance fees are 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 Apr 23, 2021, when application PCT/US2021/028843, the earliest non-provisional in its chain, was filed (this one was filed Jun 28, 2022); a parent in its chain could not be resolved (the next row)Apr 23, 2041High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+746 days, USPTO patent term adjustment recordMay 9, 2043High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderMay 9, 2043Medium confidence

This family

Application PCT/US2021/028843PCT application
no patent term
no patent term
US 12,624,369this patent
May 2043
May 2043
US 11,859,181In force
May 2041
May 2041
US 11,981,916In force
Apr 2041
Apr 2041
Application 18/447,947Pending
not computed
not computed
US 12,252,706In force
Apr 2041
Apr 2041
Application 19/052,482Pending
not computed
not computed
Application 19/673,592Pending
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.
RecordedAssignorAssigneeConveyance
Jan 14, 2026
Reel 73471, frame 732
Bowen, Tyson D.; Coyle, Michael; Crawley, Alexandra Briner; Elich, Tedd D.Lifeedit Therapeutics, Inc.Assignment of Assignor's Interest
Jan 14, 2026
Reel 74358, frame 48
Lifeedit Therapeutics, Inc.Life Edit Therapeutics, 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.

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