Also listed on Varian Medical Systems Particle Therapy GmbH, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 23, 2033 · High confidence
20-year base term ends Sep 23, 2033
Filed Sep 23, 2013 as application 14/033,950 · Granted Apr 21, 2015
Base term, 20 years from filing
Today
2013
2033
Clock starts
Sep 23, 2013
Sep 23, 2013
Term ends
Sep 23, 2033
Sep 23, 2033
Granted
Apr 21, 2015
Apr 21, 2015
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
4
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 is its 20-year base term, with no adjustment for 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 Sep 23, 2013, when this application, 14/033,950, was filed | Sep 23, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Sep 23, 2033 | High confidence |
This family
| US 9,012,866 | this patent Sep 2033 | Sep 2033 |
| Application PCT/US2014/022092 | PCT application no patent term | no patent term |
| US 9,283,407 | In force Sep 2033 | Sep 2033 |
| US 9,757,592 | In force Sep 2033 | Sep 2033 |
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 23, 2013 Reel 31260, frame 125 | Benna, Manuel; Schillo, Michael; Schultheiss, Jurgen | Varian Medical Systems Particle Therapy GmbH | Assignment of Assignor's Interest |
| Sep 23, 2013 Reel 31260, frame 244 | Cruz, Luis Alberto | Varian Medical Systems, Inc. | Assignment of Assignor's Interest |
| Jul 28, 2014 Reel 33523, frame 703 | Cruz, Luis Alberto | Varian Medical Systems, Inc. | Corrective Assignment to Correct the Receiving Party Previously Recorded at Reel: 031260 Frame: 0244. Assignor(S) Hereby Confirms the Assignment. |
| Feb 9, 2021 Reel 55339, frame 753 | Varian Medical Systems, Inc.; Varian Medical Systems Particle Therapy GmbH | Varian Medical Systems, Inc.; Varian Medical Systems Particle Therapy GmbH & Co. KG | Change of Name |
| Feb 9, 2021 reel/frame not recorded | Varian Medical Systems Particle Therapy GmbH; Varian Medical Systems, Inc. | Varian Medical Systems, Inc. | Change of Name |
| Feb 9, 2021 reel/frame not recorded | Varian Medical Systems Particle Therapy GmbH; Varian Medical Systems, Inc. | Varian Medical Systems Particle Therapy GmbH & Co. KG | Change of Name |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Sep 2033
Term ends Sep 23, 2033. No further fees fall due before then
Citations
57
later US patents cite this one
That is top 10% 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.