Velocys, Inc.
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
8
Ending by 2030
Apr 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.
- 1 fee due Nov 30, 2026The maintenance fee for Synthesis gas conversion process (US 11,661,553) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 2 fees due Jan 2 to 23, 2027 · next Jan 2
- 1 fee due May 3, 2027The maintenance fee for Microchannel reactors and fabrication processes (US 9,174,387) comes due May 3, 2027. Unpaid by Nov 3, 2027, it lapses early.
Recent changes
- 3 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 8,869,830 | Flow distribution channels to control flow in process channels In force · From the USPTO record | In force | From the USPTO record | |
| US 9,752,831 | Flow distribution channels to control flow in process channels In force · From the USPTO record | In force | From the USPTO record | |
| US 7,552,642 | Pressure vessel testing In force · From the USPTO record | In force | From the USPTO record | |
| US 9,500,414 | Partial boiling in mini and micro-channels In force · From the USPTO record | In force | From the USPTO record | |
| US 8,497,308 | Integrated microchannel synthesis and separation In force · From the USPTO record | In force | From the USPTO record | |
| US 7,935,734 | Catalytic reaction process using microchannel technology In force · From the USPTO record | In force | From the USPTO record | |
| US 11,612,874 | Loading/Unloading of Particulates To/From Microchannel Reactors In force · Medium confidence | In force | Medium confidence | |
| US 8,100,996 | Process for upgrading a carbonaceous material using microchannel process technology In force · From the USPTO record | In force | From the USPTO record | |
| US 10,155,213 | Laminated, leak-resistant chemical processors, methods of making, and methods of operating In force · From the USPTO record | In force | From the USPTO record | |
| US 10,843,161 | Laminated, leak-resistant chemical processors, methods of making, and methods of operating In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 22: 1 patent in force now held by others · 94 lapsed for an unpaid fee · 20 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 · 14 no status recorded