Breakfast cereal he launched the Cornflakes brand, which overnight captured a national market. Soon there were forty rival manufacturers in the Battle Creek area. His brother William K. Kellogg (1860–1951) worked for him for many years until, in 1906, he broke away, bought the rights to Cornflakes, and set up the Kellogg Toasted Corn Flake Company. William Kellogg discarded the health food concept, opting for heavy advertising and commercial taste appeal. Later, his signature on every package became the company trademark. The second major innovator in the cereal industry was Charles W. Post, a salesman who was admitted to Kellogg's sanitarium as
Kellogg Bridge Co. v. Hamilton manufacturer, the fair presumption is that he understood the process of its manufacture and was cognizant of any latent defect caused by such process and which reasonable diligence might have prevented. Kellogg Bridge Co. v. Hamilton Kellogg Bridge Company v. Hamilton, 110 U.S. 108 (1884), was an Implied warranty of fitness for a particular purpose lawsuit which took place in 1884. The company Kellogg Bridge Co. undertook to construct for the Lake Shore and Michigan Southern Railway Company an iron bridge across Maumee River at Toledo, Ohio. After doing a portion of the work it entered into a written contract