155 patents currently held
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.
25
Ending by 2030
Dec 2027
Next term end
57
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 Feb 2031 · High confidence
Also notable
Ends Aug 2030 · High confidence
Also notable
Ends Dec 2031 · High confidence
Solid State Lamp Using Light Emitting Strips
US 8,314,566
The most cited patent in this portfolio, cited by 315 later US patents, top 1% of utility patents granted in 2012 in our data. Protection runs to 2031.
Solid State Light Sheet Using Thin LEDs For General Illumination
US 8,461,602
Cited by 192 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
Illumination Devices Including Multiple Light Emitting Elements
US 9,081,125
Cited by 148 later US patents, top 5% of utility patents granted in 2015 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.
- 3 fees due Nov 14 to 19, 2026 · next Nov 14
- 1 fee due Dec 6, 2026The maintenance fee for Multi-Beam Vehicle Light (US 11,668,445) comes due Dec 6, 2026. Unpaid by Jun 7, 2027, it lapses early.
- 4 fees due Jan 4 to 18, 2027 · next Jan 4
- 2 fees due Feb 20 to 27, 2027 · next Feb 20
- 1 fee due Mar 10, 2027The maintenance fee for Light-Emitting Devices Providing Asymmetrical Propagation of Light (US 10,408,428) comes due Mar 10, 2027. Unpaid by Sep 10, 2027, it lapses early.
- 2 fees due Apr 1 to 22, 2027 · next Apr 1
- 3 fees due May 12 to 21, 2027 · next May 12
- 4 fees due Jun 3 to 30, 2027 · next Jun 3
- 5 fees due Jul 16 to 28, 2027 · next Jul 16
- 1 fee due Aug 4, 2027The maintenance fee for Troffer Luminaire (US 10,551,547) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 2 fees due Sep 5 to 22, 2027 · next Sep 5
- 2 fees due Oct 28, 2027
- 1 fee due Nov 10, 2027The maintenance fee for Luminaire Module with Multiple Light Guide Elements (US 9,335,462) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
What they patent
The 5 largest of its 57 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Solid State Lamp Using Light Emitting Strips | 23 in force | to Feb 2031 |
| Solid State Light Sheet for General Illumination | 11 in force | to Aug 2030 |
| Solid-State Luminaire | 10 in force | to Jan 2032 |
| Light-Emitting Device with Total Internal Reflection (TIR) Extractor | 6 in force | to Sep 2035 |
| Illumination Device for Direct-Indirect Illumination | 5 in force | to Sep 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D695,442 | Ceiling Tile with Luminaire In force · High confidence | In force | High confidence | |
| US D695,447 | Luminaire In force · High confidence | In force | High confidence | |
| US D697,663 | Luminaire In force · High confidence | In force | High confidence | |
| US D704,372 | Luminaire In force · High confidence | In force | High confidence | |
| US 8,598,778 | Light Emitting Device Having a Specific Dimension of Phosphor Layer In force · High confidence | In force | High confidence | |
| US 8,791,631 | Light Emitting Device In force · High confidence | In force | High confidence | |
| US 9,078,332 | Light Emitting Device Having a Specific Dimension of Phosphor Layer In force · High confidence | In force | High confidence | |
| US 9,420,664 | Light Emitting Device Including Nearly Index-Matched Luminescent Glass-Phosphor Composites In force · High confidence | In force | High confidence | |
| US 10,746,374 | Nearly Index-Matched Luminescent Glass-Phosphor Composites for Photonic Applications In force · High confidence | In force | High confidence | |
| US D754,980 | Workspace Divider In force · High confidence | In force | High confidence |
Also on record, not counted in the 155: 7 applications pending · 29 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.