Danstar Ferment AG

141 patents currently held · Updated Nov 15, 2026

5 more in force are now held by other companies

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

Ending by 2030

Apr 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Nov 21, 2026
The maintenance fee for Biosynthesis of phenylpropanoids and phenylpropanoid derivatives (US 10,294,499) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
3 fees due Dec 4 to 18, 2026 · next Dec 4
1 fee due Jan 30, 2027
The maintenance fee for Production of Steviol Glycoside in Recombinant Hosts (US 10,364,450) comes due Jan 30, 2027. Unpaid by Jul 30, 2027, it lapses early.
5 fees due Feb 11 to 28, 2027 · next Feb 11
2 fees due Mar 12 to 24, 2027 · next Mar 12
3 fees due Apr 1 to 30, 2027 · next Apr 1
6 fees due May 5 to 21, 2027 · next May 5
1 fee due Jun 8, 2027
The maintenance fee for Yeast Expressing Saccharolytic Enzymes for Consolidated Bioprocessing Using Starch and Cellulose (US 9,206,444) comes due Jun 8, 2027. Unpaid by Dec 8, 2027, it lapses early.
1 fee due Jul 16, 2027
The maintenance fee for Production of malonyl-COA derived products via anaerobic pathways (US 11,873,520) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
5 fees due Aug 4 to 25, 2027 · next Aug 4
2 fees due Sep 26 to 30, 2027 · next Sep 26
7 fees due Oct 2 to 28, 2027 · next Oct 2
1 fee due Nov 12, 2027
The maintenance fee for Glucans (US 10,646,506) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

3 of the patents on this record were granted since Aug 17, 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.

Patent	Title	Status	Expires	Confidence
US 8,268,372	Method for preventing defective ageing of white wines In force Term ends Apr 14, 2027 · From the USPTO record	In force	Term ends Apr 14, 2027	From the USPTO record
US 9,040,269	Metabolically engineered cells for the production of resveratrol or an oligomeric or glycosidically-bound derivative thereof In force Term ends Apr 28, 2027 · From the USPTO record	In force	Term ends Apr 28, 2027	From the USPTO record
US 10,196,617	Phytases, nucleic acids encoding them and methods for making and using them In force Ends no later than Sep 21, 2027 · From the USPTO record	In force	Ends no later than Sep 21, 2027	From the USPTO record
US 9,988,652	Yeast Expressing Cellulases for Simultaneous Saccharification and Fermentation Using Cellulose In force Term ends Jul 7, 2029 · High confidence	In force	Term ends Jul 7, 2029	High confidence
US 10,214,733	Heterologous Expression of Termite Cellulases in Yeast In force Term ends Jul 7, 2029 · Medium confidence	In force	Term ends Jul 7, 2029	Medium confidence
US 10,428,322	Heterologous expression of termite cellulases in yeast In force Term ends Jul 7, 2029 · From the USPTO record	In force	Term ends Jul 7, 2029	From the USPTO record
US 8,470,592	Isolation and Characterization of Schizochytrium Aggregatum Cellobiohydrolase I (CBH I) In force Term ends Aug 18, 2029 · High confidence	In force	Term ends Aug 18, 2029	High confidence
US 9,102,955	Yeast Expressing Cellulases for Simultaneous Saccharification and Fermentation Using Cellulose In force Term ends Nov 23, 2029 · High confidence	In force	Term ends Nov 23, 2029	High confidence
US 8,409,839	Polypeptides having cellobiohydrolase II activity In force Term ends Dec 9, 2029 · From the USPTO record	In force	Term ends Dec 9, 2029	From the USPTO record
US 8,895,287	Metabolically engineered cells for the production of resveratrol or an oligomeric or glycosidically-bound derivative thereof In force Term ends Dec 19, 2029 · From the USPTO record	In force	Term ends Dec 19, 2029	From the USPTO record

10 of 141 patents shown.

Pro members see all 141.

Pro members: see all 141 patents

Also on record, not counted in the 141: 5 patents in force now held by others · 15 lapsed for an unpaid fee · 12 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.

25 pending · 17 abandoned · 17 no status recorded

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