Precision Combustion, Inc.
3 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.
Recorded under 7 name spellings.
12
Ending by 2030
Jan 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 Dec 6 to 20, 2026 · next Dec 6
- 1 fee due Jan 4, 2027The maintenance fee for Sorbent system for removing ammonia and organic compounds from a gaseous environment (US 11,691,103) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
- 3 fees due Feb 8 to 28, 2027 · next Feb 8
- 2 fees due Mar 10 to 19, 2027 · next Mar 10
- 1 fee due May 5, 2027The maintenance fee for High capacity regenerable graphene-based sorbent (US 10,464,044) comes due May 5, 2027. Unpaid by Nov 5, 2027, it lapses early.
- 1 fee due Jun 1, 2027The maintenance fee for Process and apparatus for reforming a high sulfur-containing liquid fuel (US 9,199,846) comes due Jun 1, 2027. Unpaid by Dec 1, 2027, it lapses early.
- 1 fee due Jul 7, 2027The maintenance fee for Chemical Reactor for Use with Overly Reactive Chemicals (US 10,525,434) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
- 1 fee due Oct 30, 2027The maintenance fee for Integrated power generation system (US 11,973,249) comes due Oct 30, 2027. Unpaid by May 1, 2028, it lapses early.
- 1 fee due Nov 10, 2027The maintenance fee for Process of reforming a sulfur-containing liquid fuel (US 9,337,505) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.
Recent changes
- 2 terms have ended since Aug 16, 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 7,976,594 | Method and system for vaporization of liquid fuels In force · From the USPTO record | In force | From the USPTO record | |
| US 7,521,028 | Catalytic Reactor for Low-Btu Fuels In force · High confidence | In force | High confidence | |
| US 8,387,380 | Catalytic burner apparatus for Stirling Engine In force · From the USPTO record | In force | From the USPTO record | |
| US 9,433,913 | Catalytic isobutane alkylation In force · From the USPTO record | In force | From the USPTO record | |
| US 8,479,508 | Catalytic burner apparatus for stirling engine In force · Medium confidence | In force | Medium confidence | |
| US 8,557,189 | Catalytic system for converting liquid fuels into syngas In force · From the USPTO record | In force | From the USPTO record | |
| US 7,913,484 | Catalytic burner apparatus for stirling engine In force · From the USPTO record | In force | From the USPTO record | |
| US 7,765,810 | Method for obtaining ultra-low NOx emissions from gas turbines operating at high turbine inlet temperatures In force · From the USPTO record | In force | From the USPTO record | |
| US 7,964,023 | Regenerative sulfur sorption In force · From the USPTO record | In force | From the USPTO record | |
| US 9,102,531 | Reactor control method In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 65: 3 patents in force now held by others · 17 lapsed for an unpaid fee · 33 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.
2 pending · 6 no status recorded