Also listed on J.M. Voith SE & Co. KG, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 14, 2027 · High confidence
20-year base term ended Aug 4, 2026
Held by Driventic GmbH
Filed Aug 4, 2006 as application 11/499,099 · Granted May 5, 2009
Base term plus 163 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Aug 4, 2006
Aug 4, 2006
Term ends
Jan 14, 2027
Jan 14, 2027
Granted
May 5, 2009
May 5, 2009
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
163
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
This patent's term runs 163 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 4, 2006, when this application, 11/499,099, was filed | Aug 4, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +163 days, USPTO patent term adjustment record | Jan 14, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 14, 2027 | High confidence |
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 |
|---|---|---|---|
| Oct 23, 2006 Reel 18457, frame 721 | Scherer, Roland; Bischoff, Markus | Voith Turbo GmbH & Co. KG | Assignment of Assignor's Interest |
| Jan 4, 2022 Reel 58606, frame 763 | Voith Turbo GmbH & Co. KG | J.M. Voith SE & Co. KG | Merger |
| Jan 31, 2022 Reel 58824, frame 410 | J.M. Voith SE & Co. KG | Voith Patent GmbH | Assignment of Assignor's Interest |
| May 20, 2026 Reel 74713, frame 192 | Voith Patent GmbH | Driventic GmbH | Assignment of Assignor's Interest |
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
Jan 2027
Term ends Jan 14, 2027. No further fees fall due before then
Note
The 163 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
14
later US patents cite this one
That is above the median of utility patents granted in 2009 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.