Jan Eisenloeffel (1876-1957) was a leading Dutch designer. Eisenloeffel was a widely talented character; besides being a designer, he was also a silversmith, designer of interiors, ceramics and jewels, a stained glass artist, enameller, drawer and designer of book bindings. 

In his younger years, Eisenloeffel travelled to Russia to study collections in museums in Moscow and St. Petersburg, as well as gaining experience in large production processes. Initially, he was to become an apprentice of the famous Peter Carl Fabergé, but this was cut short when Eisenloeffel, on his first visit, remarked that he found the golden decorative designs of Fabergé "suikerbakkerswerk" (a Dutch pejorative term denoting work found excessive and too fancy). This opinion ended his apprenticeship before it had even begun. Eisenloeffel was shocked by the enormous gap between social classes in Tsarist Russia, but this also strenghtened him in the belief that well-designed products should be accesible to all, regardless of status or wealth.

His cutlery design "700" for Gero is well-known. This pattern was one of the most exclusive patterns produced by Gero.