Maintenance fees coming due

Quarkstar LLC

29 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 19, 2026. Unpaid by May 19, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 9,034,674	Method and Apparatus for Coupling Light-Emitting Elements with Light-Converting Material Quarkstar LLC In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends Jul 7, 2032 · High confidence	Quarkstar LLC	In force	Nov 19, 2026	May 19, 2027	Term ends Jul 7, 2032	High confidence
US 11,668,445	Multi-Beam Vehicle Light Quarkstar LLC In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Apr 25, 2037 · High confidence	Quarkstar LLC	In force	Dec 6, 2026	Jun 7, 2027	Term ends Apr 25, 2037	High confidence
US 11,693,174	Illumination Device for Direct-Indirect Illumination Quarkstar LLC In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Term ends Sep 17, 2034 · High confidence	Quarkstar LLC	In force	Jan 4, 2027	Jul 6, 2027	Term ends Sep 17, 2034	High confidence
US 9,078,332	Light Emitting Device Having a Specific Dimension of Phosphor Layer Quarkstar LLC In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 Term ends Jul 21, 2028 · High confidence	Quarkstar LLC	In force	Jan 7, 2027	Jul 7, 2027	Term ends Jul 21, 2028	High confidence
US 9,081,125	Illumination Devices Including Multiple Light Emitting Elements Quarkstar LLC In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 Term ends Dec 17, 2031 · High confidence	Quarkstar LLC	In force	Jan 14, 2027	Jul 14, 2027	Term ends Dec 17, 2031	High confidence
US 11,703,631	Illumination Devices Including Multiple Light Emitting Elements Quarkstar LLC In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Term ends Aug 8, 2031 · High confidence	Quarkstar LLC	In force	Jan 18, 2027	Jul 19, 2027	Term ends Aug 8, 2031	High confidence
US 10,386,039	Luminaire Assemblies with Composite Housings Quarkstar LLC In force Fee due Feb 20, 2027 Lapses if unpaid Aug 20, 2027 Term ends May 28, 2035 · High confidence	Quarkstar LLC	In force	Feb 20, 2027	Aug 20, 2027	Term ends May 28, 2035	High confidence
US 10,393,944	Luminaire Module Having A Light Guide with Redirecting Interfaces Quarkstar LLC In force Fee due Feb 27, 2027 Lapses if unpaid Aug 27, 2027 Term ends Jan 26, 2035 · High confidence	Quarkstar LLC	In force	Feb 27, 2027	Aug 27, 2027	Term ends Jan 26, 2035	High confidence
US 10,408,428	Light-Emitting Devices Providing Asymmetrical Propagation of Light Quarkstar LLC In force Fee due Mar 10, 2027 Lapses if unpaid Sep 10, 2027 Term ends Jan 4, 2033 · High confidence	Quarkstar LLC	In force	Mar 10, 2027	Sep 10, 2027	Term ends Jan 4, 2033	High confidence
US 10,429,034	Light-Emitting Device with Light Guide for Two Way Illumination Quarkstar LLC In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Jan 31, 2034 · High confidence	Quarkstar LLC	In force	Apr 1, 2027	Oct 1, 2027	Term ends Jan 31, 2034	High confidence
19 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 29 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.