▁fields ▁of ▁S iem ens . ▁Its ▁business es ▁in ▁these ▁fields ▁are ▁bund led ▁into ▁nine ▁divisions , ▁while ▁ ▁health care ▁as ▁a ▁separately ▁managed ▁business . ▁ ▁Power ▁and ▁Gas ▁S iem ens ▁Games a ▁Ren ew able ▁Energy ▁Power ▁generation ▁services ▁Energy ▁management ▁Building ▁techn ologies ▁M ob ility ▁Process ▁Indust ries ▁and ▁D riv es ▁Fin an cial ▁services ▁Health ine ers ▁Autom ation ▁and ▁drive ▁system ▁for ▁steel ▁mill s ▁Software ▁ ▁Research ▁and ▁development ▁ ▁In ▁ 2 0 1 1 , ▁S iem ens ▁inv ested ▁a ▁total ▁of ▁€ 3 . 9 2 5 ▁billion ▁in ▁research ▁and ▁development , ▁equivalent ▁to ▁ 5 . 3 % ▁of ▁reven ues . ▁As ▁of ▁ 3 0 ▁September ▁ 2 0 1 1 , ▁S iem ens ▁had ▁approximately ▁ 1 1 , 8 0 0 ▁Germany - based ▁employees ▁engaged ▁in ▁research ▁and ▁development ▁and ▁approximately ▁ 1 6 , 0 0 0 ▁in ▁the ▁rest ▁of ▁the ▁world , ▁of ▁whom ▁the ▁majority ▁were ▁based ▁in ▁either ▁Austria , ▁China , ▁Cro atia , ▁Den mark , ▁France , ▁India , ▁Japan , ▁Mexico , ▁The ▁Netherlands , ▁Russia , ▁Slov ak ia , ▁Sweden , ▁Switzerland , ▁the ▁United ▁Kingdom ▁or ▁the ▁United ▁States . ▁As ▁of ▁ 3 0 ▁September ▁ 2 0 1 1 , ▁ ▁S iem ens ▁held ▁approximately ▁ 5 3 , 3 0 0 ▁pat ents ▁world wide . ▁S iem ens ▁has ▁formed ▁a ▁strateg