Lummus Technology LLC
10 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 3 name spellings.
66
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.
- 3 fees due Nov 19 to 28, 2026 · next Nov 19
- 1 fee due Dec 4, 2026The maintenance fee for Catalysts for petrochemical catalysis (US 10,308,565) comes due Dec 4, 2026. Unpaid by Jun 4, 2027, it lapses early.
- 10 fees due Jan 7 to 30, 2027 · next Jan 7
- 6 fees due Feb 4 to 27, 2027 · next Feb 4
- 7 fees due Mar 10 to 22, 2027 · next Mar 10
- 6 fees due Apr 17 to 30, 2027 · next Apr 17
- 3 fees due May 3 to 21, 2027 · next May 3
- 4 fees due Jun 3 to 26, 2027 · next Jun 3
- 5 fees due Jul 7 to 28, 2027 · next Jul 7
- 1 fee due Aug 4, 2027The maintenance fee for Systems and Processes for the Treatment of Waste Streams Allowing Direct Activated Carbon and Membrane Contact (US 10,550,009) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 6 fees due Sep 5 to 29, 2027 · next Sep 5
- 6 fees due Oct 14 to 30, 2027 · next Oct 14
- 3 fees due Nov 3 to 10, 2027 · next Nov 3
Recent changes
- 5 of the patents on this record were granted 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 7,682,501 | Processing of different feeds in a fluid catalytic cracking unit In force · From the USPTO record | In force | From the USPTO record | |
| US 7,678,268 | Wastewater Treatment System In force · High confidence | In force | High confidence | |
| US 7,819,656 | Heater and method of operation In force · From the USPTO record | In force | From the USPTO record | |
| US 9,193,613 | PH Control to Enable Homogeneous Catalytic Wet Air Oxidation In force · Low confidence | In force | Low confidence | |
| US 8,444,724 | Upright gasifier In force · From the USPTO record | In force | From the USPTO record | |
| US 8,083,519 | Burner Nozzle In force · High confidence | In force | High confidence | |
| US 7,993,131 | Burner Nozzle In force · High confidence | In force | High confidence | |
| US 7,682,582 | Simultaneous Removel of H2S and SO2 from Tail Gases In force · High confidence | In force | High confidence | |
| US 7,687,047 | Novel Sulfur Recovery Process In force · High confidence | In force | High confidence | |
| US 8,408,896 | Method, system and apparatus for firing control In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 302: 10 patents in force now held by others · 58 lapsed for an unpaid fee · 24 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.
42 pending · 3 abandoned · 33 no status recorded