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 Jul 20, 2030 · High confidence
20-year base term ends May 19, 2029
Held by MK Systems USA Inc.
Filed May 19, 2009 as application 12/468,374 · Granted Feb 7, 2012
Base term plus 427 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
May 19, 2009
May 19, 2009
Term ends
Jul 20, 2030
Jul 20, 2030
Granted
Feb 7, 2012
Feb 7, 2012
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
427
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 427 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 May 19, 2009, when this application, 12/468,374, was filed | May 19, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +427 days, USPTO patent term adjustment record | Jul 20, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jul 20, 2030 | 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 |
|---|---|---|---|
| Nov 30, 2009 Reel 23581, frame 54 | Muller, Mathieu; Guionnet, Thomas; Buriau, Sylvain; Le Guerroue, Mickael | Envivio France | Assignment of Assignor's Interest |
| 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
Jul 2030
Term ends Jul 20, 2030. No further fees fall due before then
Note
The 427 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
19
later US patents cite this one
That is above the median of utility patents granted in 2012 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.