Agenus Inc.

41 patents currently held · Updated Nov 15, 2026

10 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.

Previously recorded as Antigenics Inc. (to 2011)

Ending by 2030

Sep 2029

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 Antibodies that specifically bind human CD96 (US 11,680,098) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
1 fee due Jan 4, 2027
The maintenance fee for ANTI-CD73 Antibodies and Methods of Use Thereof (US 11,692,042) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
2 fees due Feb 8, 2027
1 fee due Apr 22, 2027
The maintenance fee for ANTI-PD-1 Antibodies and Methods of Use Thereof (US 10,450,373) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
1 fee due May 19, 2027
The maintenance fee for ANTI-CTLA-4 Antibodies and Methods of Use Thereof (US 10,479,833) comes due May 19, 2027. Unpaid by Nov 19, 2027, it lapses early.
2 fees due Jun 10 to 12, 2027 · next Jun 10
1 fee due Aug 13, 2027
The maintenance fee for Anti-Gitr Antibodies and Methods of Use Thereof (US 11,897,962) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
1 fee due Sep 3, 2027
The maintenance fee for Anti-Gitr Antibodies and Methods of Use Thereof (US 10,577,426) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
1 fee due Oct 21, 2027
The maintenance fee for Nucleic Acids Encoding ANTI-OX40 Antibodies (US 10,626,181) comes due Oct 21, 2027. Unpaid by Apr 21, 2028, it lapses early.
1 fee due Nov 5, 2027
The maintenance fee for ANTI-TIM-3 Antibodies and Methods of Use Thereof (US 10,639,368) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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 10,502,745	Identification of Antigen- or Ligand-Specific Binding Proteins In force Term ends Sep 19, 2029 · High confidence	In force	Term ends Sep 19, 2029	High confidence
US 10,280,226	Anti-GITR Antibodies and Methods of Use Thereof In force Term ends May 28, 2035 · High confidence	In force	Term ends May 28, 2035	High confidence
US 10,577,426	Anti-Gitr Antibodies and Methods of Use Thereof In force Term ends May 28, 2035 · High confidence	In force	Term ends May 28, 2035	High confidence
US 10,800,849	Anti-Gitr Antibodies and Methods of Use Thereof In force Term ends May 28, 2035 · High confidence	In force	Term ends May 28, 2035	High confidence
US 10,829,559	Anti-Gitr Antibodies and Methods of Use Thereof In force Term ends May 28, 2035 · High confidence	In force	Term ends May 28, 2035	High confidence
US 11,401,335	Anti-Gitr Antibodies and Methods of Use Thereof In force Term ends May 28, 2035 · High confidence	In force	Term ends May 28, 2035	High confidence
US 10,155,818	Anti-GITR Antibodies and Methods of Use Thereof In force Term ends Oct 8, 2035 · High confidence	In force	Term ends Oct 8, 2035	High confidence
US 11,897,962	Anti-Gitr Antibodies and Methods of Use Thereof In force Term ends May 3, 2036 · High confidence	In force	Term ends May 3, 2036	High confidence
US 10,626,181	Nucleic Acids Encoding ANTI-OX40 Antibodies In force Term ends May 6, 2036 · High confidence	In force	Term ends May 6, 2036	High confidence
US 10,479,833	ANTI-CTLA-4 Antibodies and Methods of Use Thereof In force Term ends May 27, 2036 · High confidence	In force	Term ends May 27, 2036	High confidence

10 of 41 patents shown.

Pro members see all 41.

Pro members: see all 41 patents

Also on record, not counted in the 41: 10 patents in force now held by others · 17 lapsed for an unpaid fee · 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.

Export every term end as CSV · Pro

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.

7 pending · 27 abandoned · 8 no status recorded

List them