Ifp
9 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.
27
Ending by 2030
Feb 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.
- 2 fees due Jan 7 to 28, 2027 · next Jan 7
- 2 fees due Apr 20, 2027
- 1 fee due Jun 29, 2027The maintenance fee for Natural gas liquefaction method with high-pressure fractionation (US 9,222,724) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
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 8,148,288 | Bimetallic or multi-metallic catalyst that has an optimized bimetallicity index and an optimized hydrogen adsorption capacity In force · From the USPTO record | In force | From the USPTO record | |
| US 7,981,828 | Process for hydrodesulphurizing gasoline cuts containing sulphur and olefins in the presence of a catalyst comprising at least one support, one group VIII and one group VIB element In force · From the USPTO record | In force | From the USPTO record | |
| US 7,988,943 | Treatments of tail gas from a claus unit over an optimized sequence of catalysts In force · From the USPTO record | In force | From the USPTO record | |
| US 7,759,534 | Process and Device for Improved Separation of Paraxylene in a Simulated Moving Bed In force · High confidence | In force | High confidence | |
| US 7,838,456 | Modified EU-1 zeolite and its use in the isomerization of aromatic C8 compounds In force · From the USPTO record | In force | From the USPTO record | |
| US 7,781,629 | Methods of hydrotreating a mixture made up of oils of animal or vegetable origin and of petroleum cuts with quench injection of the oils on the last catalyst bed In force · From the USPTO record | In force | From the USPTO record | |
| US 7,872,165 | Methods of hydrotreating a mixture made up of oils of animal or vegetable origin and of petroleum cuts with intermediate stripping In force · From the USPTO record | In force | From the USPTO record | |
| US 8,146,659 | Method of modelling enhanced recovery by polymer injection In force · From the USPTO record | In force | From the USPTO record | |
| US 7,994,377 | Method of Converting Ethanol to Base Stock for Diesel Fuel In force · High confidence | In force | High confidence | |
| US 8,685,259 | Novel Fluid Distribution and Collection System in a Multistage Column Comprising a Jet Breaker In force · High confidence | In force | High confidence |
Also on record, not counted in the 44: 9 patents in force now held by others · 165 lapsed for an unpaid fee · 46 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.
3 abandoned · 13 no status recorded