When it comes to patent litigation in the LED industry, no other patent litigators in the U.S. have more experience or expertise than Radulescu LLP. David Radulescu has litigated more patent cases than any other lawyer in the country in the field of LEDs. Dr. Radulescu’s LED expertise does not begin and end with litigation; his Ph.D. work involved semiconductor devices and materials, and he has a deep understanding of the LED industry. The Radulescu LLP team has a strong background not only with litigating LED cases, but with the underlying technologies. Radulescu LLP has worked on patent cases that cover all aspects of LED technology – crystal growth, processing, LED design, circuitry and utilization. 

 

Here’s a sampling of the LED matters we have handled over the past two decades
 

The Regents of the University of California. We have represented the University of California including Shuji Nakamura, who received a Nobel Prize in Physics in 2014, in a Patent Licensing Program involving LED light bulb technology.

 

Koninklijke Philips N.V. v. Wangs Alliance Corp., d/b/a WAC Lighting. Counsel for defendant WAC Lighting in a patent infringement action filed by Philips (represented by Finnegan Henderson) in the District of Massachusetts involving 10 patents relating to LED technology including patents originating from Color Kinetics Inc.

 

IPRs 2015-1287, 1289, 1290, 1291, 1292, 1293 and 1294 (WAC Lighting v. Philips).  Counsel for Petitioner WAC Lighting in seven Inter Partes Reviews before the U.S. Patent Trial & Appeal Board requesting the cancellation of asserted invalid claims in Philips’ U.S. Patent Nos. 6,013,988; 6,147,458; 6,250,774; 6,561,690; 6,586,890; 7,038,399; and 7,352,138.

 

Seoul Semiconductor Co., Ltd. v. Curtis International, Inc. Counsel for plaintiff Seoul Semiconductor asserting seven patents in a patent infringement action pending in the Central District of California involving light emitting diode technology for use in LED TVs.  The case settled on favorable terms for Seoul Semiconductor.

 

Seoul Semiconductor Co., Ltd. v. Craig Electronics, Inc.  Counsel for plaintiff Seoul Semiconductor asserting five patents in a patent infringement action in the Southern District of Florida involving light emitting diode technology for use in LED TVs.  The case settled with a consented judgment of validity and infringement in favor of Seoul Semiconductor.

 

Everlight Electronics and Emcore v. Nichia Corp. et al.  Lead counsel for plaintiff Everlight Electronics in patent infringement action in the Eastern District of Michigan involving phosphor and metallization technologies for light emitting semiconductor devices. 

 

The Fox Group, Inc. v. Cree, Inc.  Lead counsel for defendant Cree, Inc. in patent infringement action in the Eastern District of Virginia involving silicon carbide technology. Obtained summary judgment of patent invalidity and noninfringement on the eve of trial. Fox appealed to the Court of Appeals for the Federal Circuit. Represented Cree in arguing before the Federal Circuit, which affirmed the victory before the district court.

 

Prof. Gertrude Neumark Rothschild v. Cree, Inc.  Lead counsel for Cree in patent infringement action in the Southern District of New York involving gallium nitride semiconductor technology.

 

Seoul Semiconductor v. Nichia Corp. et al.  Lead counsel for plaintiff Seoul Semiconductor in patent infringement action in the Eastern District of Texas involving light emitting semiconductor devices. Prevailed on 10 out of 10 claim construction disputes prior to a favorable settlement.

 

Nichia Corp. v. Seoul Semiconductor and Avnet  Lead counsel for defendants Seoul Semiconductor and Avnet in patent infringement action in the Eastern District of Michigan involving light emitting semiconductor devices.

 

Honeywell International v. Philips Lumileds and Cree, Inc. Lead counsel for defendant Cree in patent infringement action in the Eastern District of Texas involving use of phosphors for generating white light in semiconductor devices.

 

BridgeLux, Inc. v. Cree, Inc.  Lead counsel for Cree in multi-patent dispute pending in the Eastern District of Texas involving LED semiconductor technology. Prevailed on 22 out of 23 claim construction disputes prior to a favorable settlement.

 

Boston University and Cree, Inc. v. BridgeLux, Inc.  Lead counsel for Boston University and Cree in multi-patent dispute in the Northern District of California involving gallium nitride semiconductor technology. Prevailed on 10 out of 10 claim construction disputes prior to a favorable settlement. 

 

Cree, Inc. against Nichia Corp. (World-Wide Intellectual Property Dispute).  Counsel for Cree in a world-wide patent and trade secret dispute with Nichia Corporation involving six lawsuits in Pennsylvania, California, North Carolina and Japan and relating to gallium nitride and light emitting diode technology. Obtained favorable settlement through global patent cross-licensing.

 

Trustees of Boston University and Cree Lighting Co. v. AXT, Inc. Counsel for Boston University and Cree in patent infringement action involving LED semiconductor technology.

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