Biological e Limited

15 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

Nov 2035

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 Dec 20, 2026
The maintenance fee for Method for separation of protein and other impurities from microbial capsular polysaccharides (US 11,680,111) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
1 fee due Feb 15, 2027
The maintenance fee for Expression of pneumococcal surface protein a (PSPA) (US 11,725,029) comes due Feb 15, 2027. Unpaid by Aug 16, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended 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.

Patent	Title	Status	Expires	Confidence
US 10,280,409	Codon optimized polynucleotide for high level expression of CRM197 In force Term ends Nov 17, 2035 · From the USPTO record	In force	Term ends Nov 17, 2035	From the USPTO record
US 10,836,839	Method for separation of protein and other impurities from microbial capsular polysaccharides In force Term ends Jun 2, 2036 · From the USPTO record	In force	Term ends Jun 2, 2036	From the USPTO record
US 11,680,111	Method for separation of protein and other impurities from microbial capsular polysaccharides In force Term ends Jul 30, 2036 · From the USPTO record	In force	Term ends Jul 30, 2036	From the USPTO record
US 10,744,200	Method for preparation of aluminium phosphate gel for application in vaccine formulations In force Term ends Sep 25, 2036 · From the USPTO record	In force	Term ends Sep 25, 2036	From the USPTO record
US 10,927,149	Industrially scalable process for recovering biologically active recombinant carrier proteins In force Term ends Dec 3, 2036 · From the USPTO record	In force	Term ends Dec 3, 2036	From the USPTO record
US 11,147,863	Multivalent pneumococcal conjugate vaccine In force Term ends Feb 9, 2037 · From the USPTO record	In force	Term ends Feb 9, 2037	From the USPTO record
US 11,547,752	Multivalent Pneumococcal Vaccine Compositions Comprising Polysaccharide-Protein Conjugates In force Term ends Sep 30, 2037 · Medium confidence	In force	Term ends Sep 30, 2037	Medium confidence
US 11,098,089	Method for high level production of CRM197 In force Term ends Apr 19, 2038 · From the USPTO record	In force	Term ends Apr 19, 2038	From the USPTO record
US 11,299,558	Process for the preparation of low molecular weight heparin In force Term ends Dec 11, 2038 · From the USPTO record	In force	Term ends Dec 11, 2038	From the USPTO record
US 11,492,421	Process for the preparation of Dalteparin sodium In force Term ends May 24, 2039 · From the USPTO record	In force	Term ends May 24, 2039	From the USPTO record

10 of 15 patents shown.

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Pro members: see all 15 patents

Also on record, not counted in the 15: 1 lapsed for an unpaid fee. 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.

1 pending · 1 abandoned · 5 no status recorded

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