Also listed on Name: SKC Hi-Tech & Marketing Co., Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 19, 2027 · High confidence
20-year base term ended Sep 12, 2025
Held by Microworks Solutions Co., Ltd.
Filed Dec 17, 2007 as application 11/662,671 · Granted Dec 14, 2010
Base term plus 614 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Sep 12, 2005
Sep 12, 2005
Term ends
May 19, 2027
May 19, 2027
Granted
Dec 14, 2010
Dec 14, 2010
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
614
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 614 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 Sep 12, 2005, when application PCT/KR2005/003007, the earliest non-provisional in its chain, was filed (this one was filed Dec 17, 2007) | Sep 12, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +614 days, USPTO patent term adjustment record | May 19, 2027 | 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 | May 19, 2027 | High confidence |
This family
| US 7,850,356 | this patent May 2027 | May 2027 |
1 of 2 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Nov 19, 2007 Reel 20131, frame 476 | Yoon, Jong-sun; Seo, Min-seok; Heo, Jin-uk | SKC Co., Ltd. | Assignment of Assignor's Interest |
| Nov 28, 2007 Reel 20168, frame 337 | SKC Co., Ltd. | SKC Haas Display Films Co., Ltd. | Assignment of Assignor's Interest |
| Aug 7, 2017 Reel 43479, frame 570 | SKC Haas Display Films Co., Ltd. | Name: SKC Hi-Tech & Marketing Co., Ltd. | Change of Name |
| Mar 15, 2018 Reel 45616, frame 157 | SKC Hi-Tech & Marketing Co., Ltd. (Company Registration No. 161514-0001344) | SKC Hi-Tech & Marketing Co., Ltd. (Company Registration No. 161511-0225312) | Assignment of Assignor's Interest |
| Jan 15, 2026 Reel 74078, frame 923 | SK Microworks Solutions Co., Ltd. | Microworks Solutions Co., Ltd. | 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.
What's changing
May 2027
Term ends May 19, 2027. No further fees fall due before then
Note
The 614 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2010 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.