Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof

Wyeth, LLC

A patent family: one line of work, grouped by real continuity rather than by a technology label inferred from titles. 5 of these applications claim priority to application 13/451,631, filed Apr 20, 2012. A shared origin can cover several different claimed inventions, which is why members here may not share a title. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.

Patent	Title	Holder	Status	Expires	Time remaining	Confidence
US 9,745,354	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Pfizer Inc. In force Term ends Apr 20, 2032 · High confidence	Pfizer Inc.	In force	Term ends Apr 20, 2032	Term ends Apr 20, 2032	High confidence
US 10,597,428	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Wyeth LLC In force Ends no later than Apr 20, 2032 · Medium confidence	Wyeth LLC	In force	Ends no later than Apr 20, 2032	Ends no later than Apr 20, 2032	Medium confidence
US 10,774,117	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Wyeth LLC In force Term ends Apr 20, 2032 · Medium confidence	Wyeth LLC	In force	Term ends Apr 20, 2032	Term ends Apr 20, 2032	Medium confidence
US RE46,376	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Pfizer Inc. In force Term ends Apr 20, 2032 · Low confidence	Pfizer Inc.	In force	Term ends Apr 20, 2032	Term ends Apr 20, 2032	Low confidence
US RE46,518	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Pfizer Inc. In force Term ends Apr 20, 2032 · Low confidence	Pfizer Inc.	In force	Term ends Apr 20, 2032	Term ends Apr 20, 2032	Low confidence
US RE48,862	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Wyeth LLC In force Term ends Apr 20, 2032 · Low confidence	Wyeth LLC	In force	Term ends Apr 20, 2032	Term ends Apr 20, 2032	Low confidence
US RE48,863	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Wyeth LLC In force Term ends Apr 20, 2032 · Low confidence	Wyeth LLC	In force	Term ends Apr 20, 2032	Term ends Apr 20, 2032	Low confidence
US 11,535,652	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Wyeth LLC In force Term ends Jul 1, 2032 · Medium confidence	Wyeth LLC	In force	Term ends Jul 1, 2032	Term ends Jul 1, 2032	Medium confidence
US 8,557,548	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Pfizer Inc. Surrendered on reissue Apr 25, 2017 Surrendered on reissue Apr 25, 2017 · Low confidence	Pfizer Inc.	Surrendered on reissue Apr 25, 2017	Surrendered on reissue Apr 25, 2017	Term ended Apr 25, 2017	Low confidence
US 8,900,597	Compositions Relating to a Mutant Clostridium Difficile Toxin and Methods Thereof Pfizer Inc. Surrendered on reissue Aug 22, 2017 Surrendered on reissue Aug 22, 2017 · Low confidence	Pfizer Inc.	Surrendered on reissue Aug 22, 2017	Surrendered on reissue Aug 22, 2017	Term ended Aug 22, 2017	Low confidence
2 more patents in this group · Pro

10 of 12 records shown. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.

Pro members see all 12, including 3 expired.

Upgrade to Pro

5 of these are in force and held by Wyeth, LLC.

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

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