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Holding
In
Raytheon Technologies Corp. v. General Electric Co.,
2021 U.S. App. LEXIS 10961 (Fed. Cir., Apr. 16, 2021), the Federal
Circuit (Judges Chen, Lourie, and Hughes) reversed the PTAB s
Final Written Decision that certain challenged claims of
Raytheon s U.S. Patent No. 9,695,751 ( the 751
patent ) would have been unpatentable as obvious. The Federal
Circuit held that the relied-upon prior art failed to enable one of
ordinary skill to make and use the claimed invention.
Background
Raytheon s patent is directed to gas turbine engines and
recites a power density range. The claims
read, in relevant part:
A gas turbine engine comprising:
a fan including a plurality of fan blades . . . ; a compressor ....

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