Wallace H. Coulter
Wallace Henry Coulter (born February 17, 1913 in Little Rock , Arkansas , † August 7, 1998 ) was an American engineer, entrepreneur and inventor.
Coulter started making radios as a teenager and studied electrical engineering without a degree from the Georgia Institute of Technology . He then worked for radio companies, General Electric and Raytheon . During experiments with his brother Joseph, an electrical engineer, in their home in Chicago, he invented the Coulter counter in 1947 , a flow cytometry counting method for counting microscopic particles of a given type and size, which was specially designed for blood tests (counting white and red blood cells in one Sample) found widespread use. The particles are sucked through an electrically charged tube with a small hole at the end with a vacuum pump and the disturbances in the field when the particles are sucked through are registered. The process was patented in 1953. The brothers founded Coulter Electronics , which became Beckman Coulter in 1997, and moved the company to Hialeah, Florida in 1961. By the mid-1990s, they had $ 750 million in sales and dominated the automatic blood cell counter market.
Wallace H. Coulter was inducted into the National Inventors Hall of Fame in 2004 .
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| personal data | |
|---|---|
| SURNAME | Coulter, Wallace H. |
| ALTERNATIVE NAMES | Coulter, Wallace Henry |
| BRIEF DESCRIPTION | American engineer |
| DATE OF BIRTH | February 17, 1913 |
| PLACE OF BIRTH | Little rock |
| DATE OF DEATH | August 7, 1998 |