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It looks like Ford has been giving thought about creating a heat pump for its EVs. In 2019 they filed a patent for a "Vapor Injection Heat Pump And Control Method".
The patent was filed on June 18th, 2019, published on February 22nd, 2022, and assigned serial number 11254190B2.
The patent was filed on June 18th, 2019, published on February 22nd, 2022, and assigned serial number 11254190B2.