Court Confirms Validity of EPISTAR Patents and Rules that Lowe’s Infringes EPISTAR Patents

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On October 4, 2022, in EPISTAR Corporation v. Lowe’s Home Centers, LLC, the United States District Court of the Central District of California issued its post-trial decision that confirmed the jury verdict that Lowe’s Home Centers LLC (“Lowe’s”) LED filament bulbs infringed three EPISTAR patents and rejected Lowe’s arguments that challenged the validity of the EPISTAR patents.

The three EPISTAR patents were (1) U.S. Patent No. 7,560,738 (“’738 Patent”), titled “Light-Emitting Diode Array Having An Adhesive Layer,” (2) U.S. Patent No. 8,492,780 (“’780 Patent”), titled “Light-Emitting Device And Manufacturing Method Thereof,” and (3) U.S. Patent No. 6,346,771 (“’771 Patent”), titled “High Power LED Lamp.”

In its decision, the Court specifically upheld the jury finding that Lowe’s LED filament bulbs manufactured by Zhejiang Yankon Group Co., Ltd. infringed claims 1-3 and 8 of the ‘738 Patent, claims 1, 3 and 7 of the ’780 Patent and claim 38 of the ’771 Patent.

The Court post-trial decision further confirmed that each of the claims infringed by Lowe’s were valid over the prior art.

EPISTAR has invested millions of dollars in the research and development of LED technologies that led to a world-class patent portfolio consisting of over 4000 issued patents and pending patent applications. This investment has laid the foundation of LED lighting technologies that have empowered the world-class products that many consumers have come to enjoy, including the LED filament bulb at issue in this case. Innovation is extremely important to the industry and should be respected and awarded fairly to drive the evolution of technology. EPISTAR is pleased with the result and will continue its enforcement activities against those using EPISTAR’s technology without authorization.

EPISTAR is represented by the law firm of Wilson Sonsini Goodrich & Rosati, P.C.

 

GoldMember Report

Report Name Content Format Release
LED Industry Demand and Supply Database Demand Market Forecast: PDF / Excel
1Q (March) /
3Q (September)
2022-2026 Demand Market Forecast
(Backlight and Flash LED / General Lighting / Architectural Lighting / Automotive- Passenger Car & Box Truck & Scooter / Video Wall / Horticultural Lighting / UV LED / IR LED / Micro LED / Mini LED)
Supply Market Analysis:
1. LED Chip Market Value (External Sales, Total Sales)
2. WW New GaN LED and AS/P LED MOCVD Chamber Installation Volume /
    WW Accumulated GaN LED and AS/P LED MOCVD Chamber Installation
3. GaN LED and AS/P LED Wafer Market Demand (By Region / By Wafer Size)
4. GaN LED and AS/P LED Market Sufficiency Analysis
LED Player Revenue and Capacity LED Chip Market Analysis: PDF / Excel
2Q (June) /
4Q (December)
Top 10 LED Chip Manufacturer Revenue and Wafer Capacity
LED Package Market Analysis:
LED Package Manufacturer Revenue, LED Revenue, and Capacity
Top 10 LED Package Revenues in Backlight and Flash LED, Lighting, Automotive, Video Wall, UV LED
LED Industry Price Survey Price Survey- Sapphire / Chip / LED Package (Backlight, Lighting, Automotive, Video Wall, UV LED, IR LED, VCSEL) Excel
1Q (March) /
2Q (June) /
3Q (September) /
4Q (December)
LED Industry Quarterly Update Major Players Quarterly Update: PDF
1Q (March) /
2Q (June) /
3Q (September) / 4Q (December)
EU / U.S- Lumileds, ams OSRAM, CREE LED (Smart Global Holdings)
JP- Nichia, Citizen, Stanley, ROHM
KR- Samsung, Seoul Semiconductor, Seoul Viosys
ML- Dominant
TW- Ennostar, Epileds, Everlight, LITEON, AOT, Harvatek, PlayNitride
CN- San’an, Changelight, HC SemiTek, Aucksun, Focus Lightings, Nationstar, Hongli, Refond, Jufei, MTC, ChangFang Lighting, MLS

 

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