Also listed on Ericsson IT Solutions & Services SAS, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jun 23, 2026 (Blue Torch Finance LLC).
Term ends Feb 4, 2035 · High confidence
20-year base term ends Feb 14, 2034
Held by MK Systems USA Inc.
Filed Feb 14, 2014 as application 14/181,242 · Granted Apr 25, 2017
Base term plus 355 days of patent term adjustment (USPTO delay)
Today
2014
2035
Clock starts
Feb 14, 2014
Feb 14, 2014
Term ends
Feb 4, 2035
Feb 4, 2035
Granted
Apr 25, 2017
Apr 25, 2017
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
355
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.
This patent's term runs 355 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 Feb 14, 2014, when this application, 14/181,242, was filed | Feb 14, 2034 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +355 days, USPTO patent term adjustment record | Feb 4, 2035 | 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 | Feb 4, 2035 | 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 |
|---|---|---|---|
| May 5, 2014 Reel 32823, frame 471 | Sorin, Marine; Guionnet, Thomas; Kypreos, Jean; Hervouet, Guillaume | Envivio | Assignment of Assignor's Interest |
| Mar 10, 2017 Reel 41965, frame 1 | Sorin, Marine; Guionnet, Thomas; Kypreos, Jean; Hervouet, Guillaume | Envivio France | Corrective Assignment to Correct the Assignee Name Previously Recorded at Reel: 032823 Frame: 0471. Assignor(S) Hereby Confirms the Assignment. |
| Sep 15, 2020 Reel 53771, frame 453 | Envivio France; Ericsson IT Solutions & Services SAS | Ericsson IT Solutions & Services SAS | Merger and Change of Name |
| Sep 15, 2020 Reel 53772, frame 363 | Ericsson France | Leone Media Inc. | Assignment of Assignor's Interest |
| Sep 15, 2020 Reel 53772, frame 734 | Leone Media Inc. | MK Systems US Holdco Inc. | Assignment of Assignor's Interest |
| Sep 15, 2020 Reel 53774, frame 377 | MK Systems US Holdco Inc. | MK Systems US Sub-Holdco Inc. | Assignment of Assignor's Interest |
| Sep 15, 2020 Reel 53774, frame 639 | MK Systems US Sub-Holdco Inc. | MK Systems USA Inc. | Assignment of Assignor's Interest |
| Sep 15, 2020 Reel 53780, frame 945 | Ericsson IT Solutions & Services SAS; Ericsson France | Ericsson France | Merger and Change of Name |
| May 20, 2022 Reel 60134, frame 68 | MK Systems USA Inc. | Citibank, N.A., as Agent | Security Interest |
| Oct 10, 2025 Reel 73062, frame 487 | MK Systems USA Inc. | Wells Fargo Bank, National Association, as Agent | Security Interest |
| Oct 14, 2025 Reel 73070, frame 114 | Citibank, N.A., as Agent | MK Systems USA Inc. | Release of Security Interest |
| Jun 23, 2026 Reel 75802, frame 128 | MK Systems USA Inc. | Blue Torch Finance LLC | Security Interest |
| Jun 25, 2026 Reel 75826, frame 503 | Wells Fargo Bank, National Association, as Agent | MK Systems USA Inc. | Release of Security 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
Feb 2035
Term ends Feb 4, 2035. Maintenance fees still fall due before then
Note
The 355 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2017 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.