After securing a U.S. patent (#2,656,508) for the Coulter Principle in 1953, Wallace and his brother Joseph R. Coulter (d. 1998) began the production of the new cell and particle analyzer, the Coulter Counter. Orders and sales continued to increase and, in 1958, the brothers incorporated their company as Coulter Electronics, Inc. and relocated operations to Hialeah, Florida in 1961.
Following the patent acquisition (#2,656,508) for the Coulter Principle in 1953, Wallace and his brother Joseph R. Coulter began manufacturing the new cell analyzer, which was later branded as the Coulter Counter. The company's expansion led to incorporation as Coulter Electronics, Inc. in 1958, with operations relocated to Hialeah, Florida in 1961.