Topsoe A/S
7 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 2 name spellings.
Previously recorded as Haldor Topsøe A/S (to 2023)
42
Ending by 2030
Nov 2026
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.
- 7 fees due Dec 2 to 25, 2026 · next Dec 2
- 5 fees due Jan 2 to 21, 2027 · next Jan 2
- 2 fees due Feb 22 to 28, 2027 · next Feb 22
- 4 fees due Mar 12 to 26, 2027 · next Mar 12
- 7 fees due Apr 1 to 30, 2027 · next Apr 1
- 6 fees due May 7 to 26, 2027 · next May 7
- 3 fees due Jun 3 to 12, 2027 · next Jun 3
- 6 fees due Jul 5 to 30, 2027 · next Jul 5
- 7 fees due Aug 4 to 25, 2027 · next Aug 4
- 7 fees due Sep 1 to 24, 2027 · next Sep 1
- 2 fees due Oct 2 to 28, 2027 · next Oct 2
- 3 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- 5 of the patents on this record were granted since Aug 16, 2026
- 1 term has 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 7,780,926 | Heat exchange process and reactor In force · From the USPTO record | In force | From the USPTO record | |
| US 7,625,538 | Diesel particulate filter In force · From the USPTO record | In force | From the USPTO record | |
| US 8,333,884 | Partial conversion hydrocracking process and apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 7,776,299 | Process for removal of SO2 from off-gases by reaction with H2O2 In force · From the USPTO record | In force | From the USPTO record | |
| US 7,670,394 | Compact Reforming Reactor In force · Medium confidence | In force | Medium confidence | |
| US 7,431,828 | Process for desulphurization of a hydrocarbon stream with a reduced consumption of hydrogen In force · From the USPTO record | In force | From the USPTO record | |
| US 8,232,022 | Fuel cell stack clamping structure and solid oxide fuel cell stack In force · From the USPTO record | In force | From the USPTO record | |
| US 8,623,303 | Process for the removal of hydrogen cyanide and formic acid from synthesis gas In force · From the USPTO record | In force | From the USPTO record | |
| US 7,858,259 | Fuel cell stack clamping structure and solid oxide fuel cell stack In force · From the USPTO record | In force | From the USPTO record | |
| US 7,776,285 | Reactor and process for carrying out endothermic or exothermic catalytic reaction In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 333: 7 patents in force now held by others · 11 lapsed for an unpaid fee · 18 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.
72 pending · 7 abandoned · 13 no status recorded