Santen SAS
8 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.
9
Ending by 2030
Feb 2027
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.
- 2 fees due Jan 7 to 28, 2027 · next Jan 7
- 1 fee due Mar 15, 2027The maintenance fee for Compositions containing quaternary ammonium compounds (US 9,132,071) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
Recent changes
- 2 terms have ended 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 9,220,694 | Emulsion compositions containing cetalkonium chloride In force · From the USPTO record | In force | From the USPTO record | |
| US 7,973,081 | Emulsion compositions containing quaternary ammonium compounds In force · From the USPTO record | In force | From the USPTO record | |
| US 11,612,658 | Oil-in-water emulsions comprising cetalkonium chloride and methods of making and using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,071,114 | Compositions containing quaternary ammonium compounds In force · From the USPTO record | In force | From the USPTO record | |
| US 8,298,569 | Ophthalmic emulsions containing an immunosuppressive agent In force · From the USPTO record | In force | From the USPTO record | |
| US 8,298,568 | Oil-in-water type emulsion with low concentration of cationic agent and positive zeta potential In force · From the USPTO record | In force | From the USPTO record | |
| US 8,372,434 | Ophthalmic oil-in-water type emulsion with stable positive zeta potential In force · From the USPTO record | In force | From the USPTO record | |
| US 9,132,071 | Compositions containing quaternary ammonium compounds In force · From the USPTO record | In force | From the USPTO record | |
| US 9,089,480 | Anionic oil-in-water emulsions containing prostaglandins and uses thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 9,555,045 | Use of prostaglandins F2alpha and analogues for the healing of corneal and conjunctival lesions In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 12: 8 patents in force now held by others · 9 lapsed for an unpaid fee · 19 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.
1 abandoned · 6 no status recorded