German engineering giant Siemens has hastily abandoned plans to register the trademark "Zyklon", the same name as the Zyklon B poison gas used in Nazi extermination camps, BBC News Online has learnt. A year ago, Bosch Siemens Hausgeraete (BSH), the firm's consumer products joint venture, filed two applications with the US Patent & Trademark Office for the Zyklon name across a range of home products, including gas ovens. Jewish groups have condemned the move, in particular because Siemens used slave labour during the Nazi period. "We are very sorry if this trademark application has caused any offence," Bosch Siemens spokeswoman...