• Court of Appeals for the Federal Circuit

  Judge

  1982 – 1994 · 12 yrs

• Court of Customs and Patent Appeals

  Judge

  1973 – 1982 · 9 yrsAppointed by Richard Nixon

Career

• U.S. senator from Iowa

  1961 – 1973 · 12 yrs

• State senator

  Iowa

  1957 – 1960 · 3 yrs

• State representative

  Iowa

  1955 – 1956 · 1 yr

• Private practice

  1949 – 1960 · 11 yrs

• Assistant professor of law

  Notre Dame Law School

  1948 – 1949 · 1 yr

• Attorney, Office of Chief Counsel

  Internal Revenue Service, U.S. Department of the Treasury

  1947 – 1948 · 1 yr

• U.S. Army

  Air Corps

  1942 – 1946 · 4 yrs

Education