426 patents currently held
40 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.
5 more records may belong here and await a decision; they are not counted.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
74
Ending by 2030
Dec 2026
Next term end
378
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 Jul 2030 · High confidence
Also notable
Ends Mar 2036 · High confidence
Also notable
Ends Jun 2031 · High confidence
LED lighting assemblies with thermal overmolding
US 8,465,175
The most cited patent in this portfolio, cited by 345 later US patents, top 1% of utility patents granted in 2013 in our data. Protection runs to 2030.
Light Disinfection System and Method
US 9,937,274
Cited by 59 later US patents, top 5% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2036.
LED Lamp with Surface Area Enhancing Fins
US 8,593,040
Cited by 90 later US patents, top 10% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
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.
- 3 fees due Dec 6 to 25, 2026 · next Dec 6
- 2 fees due Jan 18, 2027
- 5 fees due Feb 6 to 27, 2027 · next Feb 6
- 9 fees due Mar 1 to 29, 2027 · next Mar 1
- 8 fees due Apr 1 to 27, 2027 · next Apr 1
- 7 fees due May 3 to 26, 2027 · next May 3
- 7 fees due Jun 3 to 26, 2027 · next Jun 3
- 5 fees due Jul 2 to 12, 2027 · next Jul 2
- 4 fees due Aug 11 to 25, 2027 · next Aug 11
- 12 fees due Sep 1 to 29, 2027 · next Sep 1
- 8 fees due Oct 5 to 28, 2027 · next Oct 5
- 4 fees due Nov 3 to 10, 2027 · next Nov 3
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 6 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 378 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Color Stable Red-Emitting Phosphors | 7 in force | to Aug 2034 |
| LED Lamp with Uniform Omnidirectional Light Intensity Output | 5 in force | to Nov 2031 |
| Processes for Preparing Color Stable Red-Emitting Phosphor Particles Having Small Particle Size | 4 in force | to Apr 2040 |
| LED backlighting system for cabinet sign | 4 in force | to Aug 2033 |
| Devices Containing a Remote Phosphor Package with Red Line Emitting Phosphors and Green Emitting Quantum Dots | 3 in force | to May 2037 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D672,903 | LED Wall Fixture In force · High confidence | In force | High confidence | |
| US D673,318 | Roadway Light Fixture In force · High confidence | In force | High confidence | |
| US D674,927 | LED Lamp In force · High confidence | In force | High confidence | |
| US 7,497,600 | Booster Optic In force · High confidence | In force | High confidence | |
| US D678,793 | Multimode Daylight Sensor In force · High confidence | In force | High confidence | |
| US 9,165,487 | LED Backlight System for Cabinet Sign In force · High confidence | In force | High confidence | |
| US 9,836,999 | LED Backlight System for Cabinet Sign In force · High confidence | In force | High confidence | |
| US 8,011,799 | Thermal Management of LED-Based Lighting Systems In force · High confidence | In force | High confidence | |
| US 8,348,469 | Flexible High-Power LED Lighting System In force · High confidence | In force | High confidence | |
| US D681,867 | Suspended Luminaire In force · High confidence | In force | High confidence |
Also on record, not counted in the 426: 40 patents in force now held by others · 216 patents ended · 11 applications pending · 73 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.