The Patent Finder
US

Exosome transfer of nucleic acids to cells

US 9,085,778 In force (reinstated)
OverviewFamilyAssignmentsSources & methods

Term ends Sep 19, 2029 · High confidence

Filed Apr 30, 2007 as application 11/799,148 · Granted Jul 21, 2015
Base term plus 873 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2029
Clock starts
Apr 30, 2007
Term ends
Sep 19, 2029
Granted
Jul 21, 2015
base term patent term adjustment 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
873
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
6
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 873 days past its 20-year base term on prosecution delay. 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 Apr 30, 2007, when this application, 11/799,148, was filedApr 30, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+873 days, USPTO patent term adjustment recordSep 19, 2029High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn force (reinstated)High confidence
Computed term endThe steps above, in orderSep 19, 2029High confidence

This family

US 9,085,778this patent
Sep 2029
Sep 2029
US 9,629,929In force
Apr 2027
Apr 2027
US 9,889,210In force
Apr 2027
Apr 2027
Application 15/857,539Abandoned
not computed
not computed
US 10,695,443In force
Apr 2027
Apr 2027
Application 16/905,719Abandoned
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
Oct 2, 2015
Reel 36720, frame 848
Lotvall, Jan; Valadi, Hadi; Nilsson, JonasExosome Venture ABAssignment of Assignor's Interest
Oct 2, 2015
Reel 36720, frame 856
Exosome Venture ABVL27, Inc.Assignment of Assignor's Interest
Feb 29, 2016
Reel 37855, frame 571
VL27, Inc.Codiak Biosciences, Inc.Assignment of Assignor's Interest
Feb 29, 2016
Reel 37855, frame 728
Lotvall, Jan; Valadi, HadiExosome Venture ABAssignment of Assignor's Interest
Feb 29, 2016
Reel 37958, frame 470
Lotvall, Jan; Valadi, HadiExosome Venture ABCorrective Assignment to Correct the Listing of Inventors, Properties and Attorney Docket Number Previously Recorded on Reel 036720 Frame 0848. Assignor(S) Hereby Confirms the Assignment.
Oct 11, 2023
Reel 65183, frame 772
Codiak Biosciences, Inc.Lonza Sales AGAssignment 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