Also listed on Quantum Engineering, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 16, 2030 · High confidence
20-year base term ends Jun 30, 2029
Held by Siemens Mobility, Inc.
Filed Aug 12, 2013 as application 13/964,915 · Granted Oct 27, 2015
Base term plus 320 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Jun 30, 2009
Jun 30, 2009
Term ends
May 16, 2030
May 16, 2030
Granted
Oct 27, 2015
Oct 27, 2015
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
320
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 320 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 30, 2009, when application 12/495,378, the earliest non-provisional in its chain, was filed (this one was filed Aug 12, 2013) | Jun 30, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +320 days, USPTO patent term adjustment record | May 16, 2030 | 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 | May 16, 2030 | High confidence |
This family
| US 8,509,970 | In force Jun 2032 | Jun 2032 |
| US 9,168,935 | this patent 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 |
|---|---|---|---|
| Apr 18, 2014 Reel 32706, frame 239 | Hickenlooper, Harrison Thomas | Quantum Engineering, Inc. | Assignment of Assignor's Interest |
| Apr 18, 2014 Reel 32714, frame 665 | Kane, Mark Edward | Siemens Rail Automation Corporation | Assignment of Assignor's Interest |
| May 13, 2014 Reel 32875, frame 340 | Quantum Engineering, Inc.; Invensys Rail Corporation | Invensys Rail Corporation | Assignment of Assignor's Interest |
| May 14, 2014 Reel 32892, frame 476 | Invensys Rail Corporation | Siemens Rail Automation Corporation | Change of Name |
| May 15, 2014 Reel 32895, frame 760 | Siemens Rail Automation Corporation; Siemens Industry, Inc. | Siemens Industry, Inc. | Merger |
| 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
May 2030
Term ends May 16, 2030. Maintenance fees still fall due before then
Note
The 320 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2015 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.