32 patents currently held
47 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 Dec 2026. from the record
Of the 47 now held by other companies, 47 name Champ Tech Optical Foshan Corporation as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
17
Ending by 2030
Dec 2026
Next term end
32
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 Dec 2027 · High confidence
Also notable
Ends Aug 2027 · High confidence
Also notable
Ends Nov 2031 · High confidence
LED Illumination Device
US D694,935
The most cited patent in this portfolio, cited by 39 later US patents, top 25% of design patents granted in 2013 in our data. Protection runs to 2027.
Light Emitting Diode Lamp
US D688,408
Cited by 38 later US patents, top 25% of design patents granted in 2013 in our data. Protection runs to 2027.
Street Lamp
US D770,660
Cited by 34 later US patents, top 25% of design patents granted in 2016 in our data. Protection runs to 2031.
Formerly held, still cited
Notable
Ends Dec 2033 · High confidence
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2033.
now held by Champ Tech Optical (Foshan) Corporation
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 1 of the patents on this record was granted since Aug 17, 2026
- 4 terms have ended since Aug 17, 2026
What they patent
The 1 largest of its 32 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Manufacturing Method for Metallic Housing of Electronic Device | 1 in force | to Aug 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D672,077 | LED Lamp In force · High confidence | In force | High confidence | |
| US 7,443,071 | Motor Stator In force · High confidence | In force | High confidence | |
| US D688,408 | Light Emitting Diode Lamp In force · High confidence | In force | High confidence | |
| US D690,649 | Motor Shell In force · High confidence | In force | High confidence | |
| US D690,650 | Motor Shell In force · High confidence | In force | High confidence | |
| US D690,651 | Motor Shell In force · High confidence | In force | High confidence | |
| US D691,087 | Motor Shell In force · High confidence | In force | High confidence | |
| US D691,321 | Lens In force · High confidence | In force | High confidence | |
| US D691,556 | Motor Shell In force · High confidence | In force | High confidence | |
| US D692,170 | LED Lamp In force · High confidence | In force | High confidence |
Also on record, not counted in the 32: 47 patents in force now held by others · 1,177 patents ended · 10 applications pending · 620 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.