Red Leaf Resources, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
4
Ending by 2030
Mar 2029
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 14, 2027
- 1 fee due Jun 26, 2027The maintenance fee for Staged oil shale processing methods (US 11,851,618) comes due Jun 26, 2027. Unpaid by Dec 27, 2027, it lapses early.
- 1 fee due Jul 26, 2027The maintenance fee for Methods and Systems for Removing Fines From Hydrocarbon-Containing Fluids (US 9,242,190) comes due Jul 26, 2027. Unpaid by Jan 26, 2028, it lapses early.
- 1 fee due Sep 5, 2027The maintenance fee for Low temperature homogeneous charge continuous oxidation pyrolysis of carbon ores (US 11,920,088) comes due Sep 5, 2027. Unpaid by Mar 6, 2028, 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 7,862,705 | Methods of recovering hydrocarbons from hydrocarbonaceous material using a constructed infrastructure and associated systems In force · From the USPTO record | In force | From the USPTO record | |
| US 7,862,706 | Methods of recovering hydrocarbons from water-containing hydrocarbonaceous material using a constructed infrastructure and associated systems In force · From the USPTO record | In force | From the USPTO record | |
| US 7,906,014 | Methods of recovering hydrocarbons from hydrocarbonaceous material with reduced non-carbonaceous leachate and CO2 and associated systems In force · From the USPTO record | In force | From the USPTO record | |
| US 7,967,974 | Methods of recovering hydrocarbons from hydrocarbonaceous material using a constructed infrastructure having permeable walls and associated systems In force · From the USPTO record | In force | From the USPTO record | |
| US 9,079,712 | Subsidence control system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,961,652 | Method For The Removal And Condensation Of Vapors In force · High confidence | In force | High confidence | |
| US 9,080,434 | Access system for a pressure controlled environment In force · From the USPTO record | In force | From the USPTO record | |
| US 9,242,190 | Methods and Systems for Removing Fines From Hydrocarbon-Containing Fluids In force · High confidence | In force | High confidence | |
| US 9,828,551 | Composite feedstock for recovery of hydrocarbons from hydrocarbonaceous material In force · From the USPTO record | In force | From the USPTO record | |
| US 10,208,254 | Stage Zone Heating of Hydrocarbon Bearing Materials In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 15: 19 lapsed for an unpaid fee. 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 pending · 1 abandoned · 4 no status recorded