He emigrated to the United States,[2][3] then returned to Europe to work for the English Electric Company in Rugby.
[4] For English Electric he designed a relatively small steam generator (3 tons/hr), but with—for the time—very high pressure (supercritical) and without any drum.
[6] Siemens improved the technology and developed it as an internationally acknowledged standard for large steam generators.
After his patent, Mark Benson did not make any further public appearances, but Siemens continued to use Benson as a registered trademark for this successful type of boiler, so the name is renowned worldwide in boiler engineering, although relatively little is known about the inventor behind it.
This German engineer, inventor or industrial designer biographical article is a stub.