Meaujo (492) was a name that Jagex bought up and then sold. Andrew Gower started trading under the name Jagex in 1998 whilst making game for Games Domain and he also made the Jagex site. However for some reason he bought the licence for Meaujo (492) and then sold it off almost instantly in 2000. After that he bought the licence for Jagex and it was never mentioned again. However this is apparently pretty common for a company to do something like this.