New patents and a new partnership came in the same month as a successful public demonstration flight.Shares of the electric vertical takeoff and landing (eVTOL) company, Archer Aviation (ACHR 2.69%), spiked in October after the company successfully completed a public demonstration of its Midnight aircraft at an airshow and as the company acquired air taxi patents and signed a new partnership with an airline.The busy month for Archer boosted investor optimism in the company and pushed shares up 17.1% during ...