No Patents on Seeds! has started a petition calling for an international conference. The organisation is demanding that a ministerial conference of the contracting states of the EPO is held within one year, with the aim of taking effective measures to stop patents being granted on conventional plant and animal breeding. In addition to stopping patents on processes of crossing, selection or random mutagenesis, No Patents on Seeds! is also calling for a prohibition on extending the scope of patents granted on genetic engineering techniques to plants and animals derived from conventional breeding.