Also listed on Thyssenkrupp Steel AG, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 20, 2031 · High confidence
20-year base term ends Jun 20, 2028
Filed Nov 10, 2010 as application 12/663,809 · Granted Dec 30, 2014
Base term plus 1095 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Jun 20, 2008
Jun 20, 2008
Term ends
Jun 20, 2031
Jun 20, 2031
Granted
Dec 30, 2014
Dec 30, 2014
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
1,095
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 1095 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jun 20, 2008, when application PCT/EP2008/057873, the earliest non-provisional in its chain, was filed (this one was filed Nov 10, 2010) | Jun 20, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1095 days, USPTO patent term adjustment record | Jun 20, 2031 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 20, 2031 | High confidence |
This family
| US 8,920,938 | this patent Jun 2031 | Jun 2031 |
1 of 2 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Aug 30, 2010 reel/frame not recorded | Rogner, Ingo, DR.; Kopplin, Karl-heinz; Schulze-kraasch, Folkert; Schulokat, Udo; Herles, Torsten; Meier, Roland; Hesse, Bodo; Weyen, Hans-gerd | Thyssenkrupp Steel AG | Assignment of Assignor's Interest |
| Aug 30, 2010 reel/frame not recorded | Rogner, Ingo, DR.; Kopplin, Karl-heinz; Schulze-kraasch, Folkert; Schulokat, Udo; Herles, Torsten; Meier, Roland; Hesse, Bodo; Weyen, Hans-gerd | Walzen-Service-Center GmbH | Assignment of Assignor's Interest |
| Aug 30, 2010 Reel 24903, frame 967 | Hesse, Bodo; Kopplin, Karl-heinz; Schulze-kraasch, Folkert; Schulokat, Udo; Weyen, Hans-gerd; Rogner, Ingo, DR.; Herles, Torsten; Meier, Roland | Thyssenkrupp Steel AG; Walzen-Service-Center GmbH | Assignment of Assignor's Interest |
| Jul 22, 2014 reel/frame not recorded | Herles, Torsten; Hesse, Bodo; Meier, Roland; Rogner, Ingo; Schulokat, Udo; Schulze-kraasch, Folkert; Weyen, Hans-gerd; Kopplin, Karl-heinz | Thyssenkrup Steel Europe AG | Assignment of Assignor's Interest |
| Jul 22, 2014 reel/frame not recorded | Herles, Torsten; Hesse, Bodo; Meier, Roland; Rogner, Ingo; Schulokat, Udo; Schulze-kraasch, Folkert; Weyen, Hans-gerd; Kopplin, Karl-heinz | Walzen-Service-Center GmbH | Assignment of Assignor's Interest |
| Jul 22, 2014 Reel 33364, frame 556 | Hesse, Bodo; Weyen, Hans-gerd; Schulze-kraasch, Folkert; Schulokat, Udo; Rogner, Ingo; Meier, Roland; Kopplin, Karl-heinz; Herles, Torsten | Thyssenkrup Steel Europe AG; Walzen-Service-Center GmbH | Assignment of Assignor's Interest |
| Jul 25, 2014 reel/frame not recorded | Herles, Torsten; Hesse, Bodo; Meier, Roland; Rogner, Ingo; Schulokat, Udo; Schulze-kraasch, Folkert; Weyen, Hans-gerd; Kopplin, Karl-heinz | Thyssenkrupp Steel Europe AG | Corrective Assignment to Correct the First Assignee's Name Previously Recorded at Reel: 033364 Frame: 0556. Assignor(S) Hereby Confirms the Assignment. |
| Jul 25, 2014 reel/frame not recorded | Herles, Torsten; Hesse, Bodo; Meier, Roland; Rogner, Ingo; Schulokat, Udo; Schulze-kraasch, Folkert; Weyen, Hans-gerd; Kopplin, Karl-heinz | Walzen-Service-Center GmbH | Corrective Assignment to Correct the First Assignee's Name Previously Recorded at Reel: 033364 Frame: 0556. Assignor(S) Hereby Confirms the Assignment. |
| Jul 25, 2014 Reel 33417, frame 278 | Hesse, Bodo; Weyen, Hans-gerd; Schulze-kraasch, Folkert; Schulokat, Udo; Rogner, Ingo; Meier, Roland; Kopplin, Karl-heinz; Herles, Torsten | Thyssenkrupp Steel Europe AG; Walzen-Service-Center GmbH | Corrective Assignment to Correct the First Assignee's Name Previously Recorded at Reel: 033364 Frame: 0556. Assignor(S) Hereby Confirms the Assignment. |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
Jun 2031
Term ends Jun 20, 2031.
Note
The 1095 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
26
later US patents cite this one
That is top 25% of utility patents granted in 2014 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.