The strict laws regarding what kinds of seeds can be sold have left farmers in Germany with very little choice about what to sow on their farms, as they are limited to only a few industrial and uniform varieties. Sometimes farmers may like a particular variety, but it can quickly disappear when the variety becomes unprofitable to the company who bred it. This is what happened in 2004 when the German seed company Europlant took back ‘Linda,’ a popular variety of potato. The 30 years of the company’s exclusive property claims on ‘Linda’ through a PVP certificate had run out, and with it, the 10-15% licensing fees on the price that they could charge each time the variety was sold as seed. When the Europlant breeders asked that ‘Linda’ be taken off the catalogue, anyone who farmed it commercially would be acting illegally. ‘Linda’ was to disappear from the market, to be replaced by new varieties for which profitable licensing fees could be charged once again.