Along with his success with the Atchison Topeka & Santa Fe Railroad, John Z. Roraback and partner James M. Edgar held patents and inventions for locks and their movements that would be used in the railroad industry. Among them were patent #458,125, an invention for an indicator lock mechanism dated August 18, 1891. On March 31, 1891 they submitted patent #449,314 for an indicator lock. John then submitted patent #449,334 on March 31, 1891 for the mechanical movement inside the lock. On January 02, 1894 they submitted yet another patent for an indicator lock, #512,169. On March 26, 1896, John Z Roraback submitted his final patent application, #638,397 for an indicator lock.
He was also involved in a legal battle, Hughes vs. Ewing that was heard by the Supreme Court of Missouri, Division 2 on March 26, 1901.
John Z. Roraback died July 26, 1923 in Kansas City, Missouri and is buried at Bellefontaine Cemetery in St. Louis, Missouri
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