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Licensing Cree's Doherty amplifier-related patents

Cree's Doherty amplifier-based patents may be licensed for the manufacture and sale of Doherty-based amplifier products. The U.S. patents included in this license are listed in the table below; foreign counterparts are also included. Contact Cree at licensing@cree.com for further information.

Patent No. or Publication No.

Issue Date

Full Title

US # 6,737,922

May 18, 2004

N-way RF power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division

US # 6,791,417

September 14, 2004

N-way RF power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances

US # 6,700,444

March 2, 2004

N-way RF power amplifier with increased backoff power and power added efficiency

US # 7,764,120

July 27, 2010

Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels

US # 7,193,473

March 20, 2007

High power Doherty amplifier using multi-stage modules

US # 6,798,295

September 28, 2004

Single package multi-chip RF power amplifier