The Patent Finder

Sanofi Pasteur S.A.

26 patents currently held · Updated Nov 14, 2026
2 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.
12
Ending by 2030
Mar 2028
Next term end

When these terms end

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 30, 2026
    The maintenance fee for Method of Storing a Vaccine Containing an Aluminum Adjuvant (US 9,066,895) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
  • 1 fee due Mar 29, 2027
    The maintenance fee for Process for Culturing Adherent Cells (US 9,145,543) comes due Mar 29, 2027. Unpaid by Sep 29, 2027, it lapses early.
  • 1 fee due Apr 22, 2027
    The maintenance fee for Heating Device for Rotary Drum Freeze-Dryer (US 10,451,345) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
  • 2 fees due Jul 7 to 14, 2027 · next Jul 7
  • 1 fee due Sep 29, 2027
    The maintenance fee for Process For Stabilizing An Adjuvant Containing Vaccine Composition (US 9,295,721) comes due Sep 29, 2027. Unpaid by Mar 29, 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.
PatentTitleStatus Expires Confidence
US 8,420,805Process For Preparing Prophyrin Derivatives, Such As Protoprophyrin (IX) And Synthesis Intermediates
In force
 · High confidence
In forceHigh confidence
US 9,295,721Process For Stabilizing An Adjuvant Containing Vaccine Composition
In force
 · High confidence
In forceHigh confidence
US 9,878,028Process For Stabilizing An Adjuvant Containing Vaccine Composition
In force
 · High confidence
In forceHigh confidence
US 8,026,358Process for Preparing Porphyrin Derivatives, Such as Protoporphyrin (IX) and Synthesis Intermediates
In force
 · High confidence
In forceHigh confidence
US 8,016,120Method for Purifying a Viral Suspension
In force
 · High confidence
In forceHigh confidence
US 8,703,095Immuno-adjuvant emulsion
In force
 · High confidence
In forceHigh confidence
US 9,504,659Thermoreversible Oil-In-Water Emulsion
In force
 · High confidence
In forceHigh confidence
US 9,750,800Method for Purifying the Rabies Virus
In force
 · High confidence
In forceHigh confidence
US 8,551,527Process for Stabilizing an Adjuvant Containing Vaccine Composition
In force
 · High confidence
In forceHigh confidence
US 8,673,617Culture Medium for Haemophilus Influenzae Type B
In force
 · High confidence
In forceHigh confidence
10 of 26 patents shown.
Pro members see all 26.
Pro members: see all 26 patents
Also on record, not counted in the 26: 2 patents in force now held by others · 18 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.

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.

9 abandoned · 2 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited