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Company patents

LEEDARSON LIGHTING CO., LTD.

LEEDARSON LIGHTING CO., LTD. demonstrates a concentrated patent strategy, with over half of its portfolio (51.8%) in "Lighting Devices (Functional Features)" and a significant 38.8% in "Electric Heating & Lighting Control." While both core areas saw substantial growth in 2025 (54.5% and 71.4% respectively), the sharp decline in patenting activity across most categories so far in 2026, particularly the 100% drop in "Non-portable Lighting Devices," suggests a potential shift in R&D focus or a temporary slowdown in filings.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

85 US filings (since 2023) · 6 categories · 8 themes

Adaptive Lighting Control Systems

Systems and methods for dynamically adjusting light output, distribution, color, or intensity based on environmental conditions, user presence, content, or specific application needs.

Electric Heating & Lighting ControlLighting Devices (Functional Features)Non-portable Lighting Devices
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45since 2023
+70.0%YoY
Wearable & Portable Lighting

Compact and lightweight lighting devices designed to be worn on the body or easily carried, often featuring ergonomic designs, integrated power sources, and adjustable illumination.

Lighting Devices (Functional Features)
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43since 2023
+54.5%YoY
Vehicle Lighting Optics

Optical systems and components specifically designed for automotive lighting applications, focusing on beam pattern generation, light distribution, and compact integration within vehicle structures.

Non-portable Lighting Devices
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18since 2023
+250.0%YoY
LED Optical Extraction & Light Management

Optical structures and lens designs that improve light extraction efficiency from LED dies and modules, including diffractive films, micro-lens arrays, reflectors, and color-conversion layers.

Lighting Devices (Functional Features)
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9since 2023
+600.0%YoY
Integrated Tool Lighting

Lighting systems designed to be integrated directly into handheld tools or portable work equipment, often featuring compact designs, robust housings, and specific light direction for work areas.

Lighting Devices (Functional Features)
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9since 2023
+100.0%YoY
Outdoor Fixture Enclosures & Mounting

Mechanical designs for robust light fixture housings, mounting assemblies, and environmental protection, particularly for outdoor or public installations like streetlights and signage.

Non-portable Lighting Devices
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7since 2023
-66.7%YoY
Power Driver & Reliabilityfiltered

Design of power driver circuits for electric loads (e.g., LEDs, heating elements) focusing on efficiency, stability, noise reduction, and compensation for component degradation.

Electric Heating & Lighting Control
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3since 2023
0.0%YoY
Integrated Device Automation

Systems and methods for coordinating and automating the control of electric heating and lighting devices within a broader environment, often involving sensors, communication networks, and user-defined rules.

Electric Heating & Lighting Control
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1since 2023
n/a

Patents

Showing 1-3 of 3

Power Driver & Reliability
Page 1 of 1
US 12532391 B2GRANTED
H05B45/12

Lighting apparatus

Filed:2024-07-25Pub:2026-01-20
Applicant:LEEDARSON LIGHTING CO., LTD.

A lighting apparatus includes an isolation transformer, an output rectification and voltage regulation circuit, an output current limiting and filtering circuit, and a signal detection and generation circuit. The homonymous terminal of the primary side opposes the homonymous terminal of the secondary side. The output rectification and voltage regulation circuit is connected to the secondary coil of the isolation transformer. The output rectification and voltage regulation circuit rectifies and stabilizes the voltage signal output by the isolation transformer. The output current limiting and filtering circuit is connected to the dimmer and the output rectification and voltage regulation circuit. The output current limiting and filtering circuit adjusts the output current and output voltage according to the operation of the dimmer, and the output current limiting and filtering circuit limits and filters the signal output by the output rectification and voltage regulation circuit.

US 12238831 B2GRANTED
H05B45/20

Lighting apparatus

Filed:2023-07-26Pub:2025-02-25
Applicant:LEEDARSON LIGHTING CO.,LTD.

A lighting apparatus includes a light source plate, LED modules and a driver module. The light source plate includes a substrate layer, a wiring layer and a protection layer. The substrate layer is made of metal material. LED modules are disposed on a top side of the light source plate. The driver module is disposed on the top side of the light source plate. The LED modules and the driver module are electrically connected via the wiring layer. The driver module includes an AC-DC converter, a regulator, a controller, a current source and an oscillation wave removal circuit. The controller controls the current source to generate driving currents to the LED modules. The oscillation wave removal circuit is coupled to the AC-DC converter for suppressing a sudden abnormal peak voltage from the AC-DC converter.

US 11963278 B2GRANTED
H05B45/325

Lighting apparatus

Filed:2022-11-27Pub:2024-04-16
Applicant:LEEDARSON LIGHTING CO.,LTD.

A lighting apparatus includes a surge voltage protector, a first rectifier, a first DC-DC converter, a first DC filter, a first constant current source, a second rectifier, a second DC-DC converter, a second DC filter, a second constant current source, a first PWM generator, a second PWM generator, a dimmer controller, a first light source and a second light source. The surge voltage protector is coupled to an external power for relaying an AC power. When there is a surge voltage is detected, the surge voltage protector disable routing the AC power. There are two or more paths of power circuits each generating a limited power. These power circuits are placed in the same container to simplify the overall design.

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