https://www.championautoparts.com/
Champion is an American brand of spark plug.
Albert Champion Company was founded by Albert Champion in June 1905 in Boston's South End, in the landmark Cyclorama Building, to import French electrical parts, including Nieuport components. Champion presided as president of the Albert Champion Company with partners Frank D. Stranahan as treasurer and younger brother Spencer Stranahan as clerk. By 1907 The Albert Champion Company was manufacturing porcelain spark plugs with the name Champion stamped on the side, Robert Stranahan, the youngest of the Stranahan brothers, finished his classes at Harvard, ahead of his class of 1908, and went to work in the stockroom. Champion was not happy in his job because he had no control over his work. In 1908, he went to see William C. Durant of the Buick Motor Co. Durant asked to see some of his prototypes. Buick at that time was using Rajah spark plugs. Durant thought they could manufacture spark plugs to Champion's design cheaper than buying them from Rajah, and set Champion up in a workshop in Flint, MI. Champion went to work producing spark plugs to be used in Buick automobiles. Champion and Durant formed another company with Champion name, "Champion Ignition Co." that very shortly later, the Stranahan brothers from ("Champion Spark Plug Co.") informed them they could not use the name "Champion" as they had it trademarked. At 1908 the name of second company founded by Durant and Champion was changed to reflect Champion's initials to "AC Spark Plug".