UPDATE 1-Brazil says Monsanto's Intacta patent should be voided

SAO PAULO, Jan 22 (Reuters) - Brazil's patent office has concluded that Monsanto Co's Intacta RR2 Pro patent for genetically modified soy seed technology should be declared void after reexamining the issue, according to court filings seen by Reuters regarding a lawsuit against the company by grain growers association Aprosoja.