19 patents currently held
267 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jul 2029. from the record
Of the 267 now held by other companies, 265 name Ennostar Corporation as their current owner, and 2 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
Jul 2029
Next term end
18
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
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
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Mar 2034 · High confidence
Also notable
Ends Jul 2034 · High confidence
Also notable
Ends Oct 2033 · High confidence
LED Display and Manufacturing Method Thereof
US 9,484,506
The most cited patent in this portfolio, cited by 18 later US patents, top 25% of utility patents granted in 2016 in our data. Protection runs to 2034.
Light Emitting Diode Package
US 8,981,415
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2034.
Lighting Device
US 8,919,978
Granted 2014 and renewed at every maintenance window due so far. Protection runs to 2033.
Formerly held, still cited
Notable
Ends Aug 2028 · High confidence
The largest patent family in this portfolio, 7 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Ennostar Corporation
Also notable
Ends Apr 2029 · High confidence
The largest patent family in this portfolio, 7 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2029.
now held by Ennostar Corporation
Also notable
Ends Oct 2039 · High confidence
A family of 5 related applications built on the 2021 grant. Protection runs to 2039.
now held by Ennostar Corporation
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Aug 25, 2027The maintenance fee for Light-Emitting Diode Chip (US 10,573,683) comes due Aug 25, 2027. Unpaid by Feb 25, 2028, it lapses early.
Recent changes
- 7 of the patents on this record were granted since Aug 16, 2026
- 17 terms have ended since Aug 16, 2026
What they patent
The 2 largest of its 18 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| LED Display and Manufacturing Method Thereof | 2 in force | to Mar 2034 |
| Light-Emitting Diode Chip | 1 in force | to Oct 2037 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,008,686 | Light Emitting Diode Chip In force · High confidence | In force | High confidence | |
| US 8,957,446 | Light Emitting Device In force · High confidence | In force | High confidence | |
| US 8,912,029 | Manufacturing Process of Vertical Type Solid State Light Emitting Device In force · High confidence | In force | High confidence | |
| US 8,912,561 | Phosphor Composition and Light Emitting Diode Device Using the Same In force · High confidence | In force | High confidence | |
| US 8,981,631 | Illumination Apparatus In force · High confidence | In force | High confidence | |
| US 8,919,978 | Lighting Device In force · High confidence | In force | High confidence | |
| US 8,952,398 | LED Lighting Module In force · High confidence | In force | High confidence | |
| US 8,957,452 | Light Emitting Diode Structure In force · High confidence | In force | High confidence | |
| US 9,484,506 | LED Display and Manufacturing Method Thereof In force · High confidence | In force | High confidence | |
| US 9,818,915 | LED Display and Manufacturing Method Thereof In force · High confidence | In force | High confidence |
Also on record, not counted in the 19: 267 patents in force now held by others · 106 patents ended · 68 applications pending · 161 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.