Ylx Incorporated
8 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.
Previously recorded as Appotronics China Corporation (to 2019)
2
Ending by 2030
Aug 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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.
- 1 fee due Dec 30, 2026The maintenance fee for Lighting device, method and light wavelength conversion wheel assembly for color tuning thereof (US 9,069,162) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
- 1 fee due Jun 29, 2027The maintenance fee for LED illuminating device for stage lighting and method for improving color uniformity of the device (US 9,222,643) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
- 1 fee due Jul 16, 2027The maintenance fee for Light Source Device and Lamp (US 11,873,963) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
- 1 fee due Aug 20, 2027The maintenance fee for Light source system and light-emitting device (US 11,906,155) comes due Aug 20, 2027. Unpaid by Feb 22, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,621,677 | Optical coupler for a light emitting device with enhanced output brightness In force · From the USPTO record | In force | From the USPTO record | |
| US 8,008,694 | Brightness enhancement method and apparatus of light emitting diodes In force · From the USPTO record | In force | From the USPTO record | |
| US 8,662,690 | Multi-colored illumination system with wavelength converter and method In force · From the USPTO record | In force | From the USPTO record | |
| US 8,858,023 | Light mixing lamp In force · From the USPTO record | In force | From the USPTO record | |
| US 9,069,162 | Lighting device, method and light wavelength conversion wheel assembly for color tuning thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 9,791,132 | Light source and illuminating device In force · From the USPTO record | In force | From the USPTO record | |
| US 9,222,643 | LED illuminating device for stage lighting and method for improving color uniformity of the device In force · From the USPTO record | In force | From the USPTO record | |
| US 9,970,628 | LED unit module, light-emitting device, and light source system In force · From the USPTO record | In force | From the USPTO record | |
| US 10,125,927 | Light-emitting device and stage lamp system In force · From the USPTO record | In force | From the USPTO record | |
| US 10,704,743 | Saturated amber light source device In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 29: 8 patents in force now held by others · 1 surrendered on reissue. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
2 pending · 1 no status recorded