Generation Bio Co.

9 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Mar 2041

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

No maintenance fee falls due on this company's record before Nov 14, 2027.

Recent changes

3 of the patents on this record were granted since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Showing 1 to 9 of 9

Patent	Title	Status	Expires	Confidence
US 12,252,470	Novel Lipids and Nanoparticle Compositions Thereof In force Term ends Mar 26, 2041 · High confidence	In force	Term ends Mar 26, 2041	High confidence
US 12,534,435	Novel Lipids and Nanoparticle Compositions Thereof In force Term ends Mar 26, 2041 · High confidence	In force	Term ends Mar 26, 2041	High confidence
US 12,442,015	Closed-Ended DNA Vectors Obtainable from Cell-Free Synthesis and Process for Obtaining Cedna Vectors In force Term ends Apr 20, 2042 · High confidence	In force	Term ends Apr 20, 2042	High confidence
US 12,338,275	Non-viral DNA vectors and uses thereof for expressing FVIII therapeutics In force Term ends Aug 15, 2042 · From the USPTO record	In force	Term ends Aug 15, 2042	From the USPTO record
US 12,415,002	Non-viral DNA vectors and uses thereof for expressing phenylalanine hydroxylase (PAH) therapeutics In force Term ends Oct 2, 2042 · From the USPTO record	In force	Term ends Oct 2, 2042	From the USPTO record
US 12,729,386	Compositions and Production of Nicked Closed-Ended DNA Vectors In force Term ends Dec 24, 2042 · High confidence	In force	Term ends Dec 24, 2042	High confidence
US 12,577,573	Synthetic Production of Single-Stranded Adeno Associated Viral DNA Vectors In force Term ends Feb 14, 2043 · High confidence	In force	Term ends Feb 14, 2043	High confidence
US 12,453,706	Bispecific Stealth Lipid Nanoparticle Compositions for Cell Targeting In force Ends no later than Dec 1, 2043 · Low confidence	In force	Ends no later than Dec 1, 2043	Low confidence
US 12,746,209	Stealth Lipid Nanoparticle Compositions for Cell Targeting In force Term ends Dec 1, 2043 · Medium confidence	In force	Term ends Dec 1, 2043	Medium confidence

Also on record, not counted in the 9: 2 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

8 pending · 10 abandoned · 19 no status recorded

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