Also listed on Quantum Engineering, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 2, 2032 · High confidence
20-year base term ends Jun 30, 2029
Held by Siemens Mobility, Inc.
Filed Jun 30, 2009 as application 12/495,378 · Granted Aug 13, 2013
Base term plus 1068 days of patent term adjustment (USPTO delay)
Today
2009
2032
Clock starts
Jun 30, 2009
Jun 30, 2009
Term ends
Jun 2, 2032
Jun 2, 2032
Granted
Aug 13, 2013
Aug 13, 2013
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
1,068
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.
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 1068 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 Jun 30, 2009, when this application, 12/495,378, was filed | Jun 30, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1068 days, USPTO patent term adjustment record | Jun 2, 2032 | 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 | Jun 2, 2032 | High confidence |
This family
| US 8,509,970 | this patent Jun 2032 | Jun 2032 |
| US 9,168,935 | In force May 2030 | May 2030 |
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 |
|---|---|---|---|
| Sep 11, 2009 Reel 23221, frame 264 | Hickenlooper, Harrison Thomas | Quantum Engineering, Inc. | Assignment of Assignor's Interest |
| Mar 24, 2010 Reel 24128, frame 423 | Quantum Engineering, Inc. | Invensys Rail Corporation | Assignment of Assignor's Interest |
| Sep 16, 2013 Reel 31217, frame 423 | Invensys Rail Corporation | Siemens Rail Automation Corporation | Change of Name |
| Apr 15, 2014 Reel 32689, frame 75 | Siemens Rail Automation Corporation; Siemens Industry, Inc. | Siemens Industry, Inc. | Merger |
| Apr 18, 2014 Reel 32714, frame 616 | Kane, Mark Edward | Siemens Rail Automation Corporation | Assignment of Assignor's Interest |
| Feb 28, 2019 Reel 49841, frame 758 | Siemens Industry, Inc. | Siemens Mobility, Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2032
Term ends Jun 2, 2032. No further fees fall due before then
Note
The 1068 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.