In a preferred embodiment, a microplate cassette, including: a generally hollow housing to contain therein a plurality of microplates; and a memory device associated with the cassette and adapted to be placed in operational contact with a portion of a processing device....http://www.google.com.au/patents/US6699437?utm_source=gb-gplus-sharePatent US6699437 - Bioassay cassette with memory and method of use