SIPO or Sipo can refer to: Government organizations Sicherheitspolizei, often abbreviated SiPo, the Security Police of Nazi Germany Estonian Security Police and SD, Sipo, a security police force created by the Germans in 1942 in occupied Estonia Standards in Public Office Commission, Ireland State Intellectual Property Office, the former name of patent office of the People's Republic of China, now known as the Chinese National Intellectual Property Administration State Intellectual Property Office (Croatia), the patent office of Croatia Species South Island oystercatcher or South Island pied oystercatcher, a bird species in New Zealand Sipo, some snakes of the genus Chironius Entandrophragma utile or Sipo, an African tree species - see Entandrophragma Other uses Serial In Parallel Out (SIPO) block of a Serializer/Deserializer (SerDes) in high speed communications. of a Shift register Sipo (footballer) (born 1988), Equatoguinean footballer See also Sipos (disambiguation) Sipoo, a municipality in Finland