320 patents currently held
6 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 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
41
Ending by 2030
Dec 2027
Next term end
126
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 Mar 2038 · Medium confidence
Also notable
Ends Oct 2038 · High confidence
Also notable
Ends Aug 2031 · High confidence
Display Lighting Systems with Circadian Effects
US 10,805,998
Cited by 65 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2038.
Methods and Systems for an Automated Design, Fulfillment, Deployment and Operation Platform for Lighting Installations
US 11,436,820
Cited by 50 later US patents, top 5% of utility patents granted in 2022 in our data. Protection runs to 2038.
System and Method for Selected Pump LEDs with Multiple Phosphors
US 9,293,667
Cited by 103 later US patents, top 5% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. 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.
- 5 fees due Nov 21 to 30, 2026 · next Nov 21
- 6 fees due Dec 2 to 25, 2026 · next Dec 2
- 4 fees due Jan 7 to 28, 2027 · next Jan 7
- 6 fees due Feb 6 to 18, 2027 · next Feb 6
- 3 fees due Mar 3 to 26, 2027 · next Mar 3
- 6 fees due Apr 8 to 30, 2027 · next Apr 8
- 9 fees due May 5 to 26, 2027 · next May 5
- 1 fee due Jun 17, 2027The maintenance fee for Methods of Providing Tunable Warm White Light (US 10,512,133) comes due Jun 17, 2027. Unpaid by Dec 17, 2027, it lapses early.
- 6 fees due Jul 7 to 23, 2027 · next Jul 7
- 8 fees due Aug 4 to 23, 2027 · next Aug 4
- 6 fees due Sep 3 to 26, 2027 · next Sep 3
- 5 fees due Oct 5 to 30, 2027 · next Oct 5
- 1 fee due Nov 12, 2027The maintenance fee for Optical Devices and Systems Having a Converging Lens with Grooves (US 10,649,127) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.
Recent changes
- 4 of the patents on this record were granted since Aug 17, 2026
- 1 term has ended since Aug 17, 2026
What they patent
The 5 largest of its 126 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Systems for Providing Tunable White Light with High Color Rendering | 40 in force | to Mar 2038 |
| Lighting Systems Having Multiple Edge-Lit Lightguide Panels | 34 in force | to Jul 2040 |
| System and Method for Selected Pump LEDs with Multiple Phosphors | 29 in force | to Dec 2034 |
| Circadian Friendly LED Light Source | 12 in force | to Mar 2035 |
| Illumination Source with Reduced Inner Core Size | 7 in force | to Aug 2032 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D694,722 | Heatsink In force · High confidence | In force | High confidence | |
| US D699,179 | Field Replaceable Power Supply Cartridge In force · High confidence | In force | High confidence | |
| US 7,798,841 | Wire Harness Interconnection and Retention Method and Apparatus In force · High confidence | In force | High confidence | |
| US 7,726,840 | Modular LED Lighting Fixtures In force · High confidence | In force | High confidence | |
| US D720,310 | Triangular Semiconductor Die In force · High confidence | In force | High confidence | |
| US D728,490 | Heatsink In force · High confidence | In force | High confidence | |
| US D730,302 | Heat Sink In force · High confidence | In force | High confidence | |
| US 8,002,426 | Rail Light In force · High confidence | In force | High confidence | |
| US D736,723 | LED Lamp In force · High confidence | In force | High confidence | |
| US D736,724 | LED Lamp with Accessory In force · High confidence | In force | High confidence |
Also on record, not counted in the 320: 6 patents in force now held by others · 83 patents ended · 36 applications pending · 72 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.