He was stationed in San Francisco from 1869 through 1871 and he took out a patent for the cable car railway that still runs there, receiving a charter for its operation, but signing away his rights when he was reassigned.
Johannes Rauschenbach-Schenk, head of IWC at the time, was captivated by the modern form of time display and secured the patent for the innovative technology behind it.
In 1949, a patent was granted for Luminor, the luminous substance based on tritium, which replaced the previous Radiomir mix developed between 1910 and 1915.
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