Filters with brands, manufacturers, prices in magento

Below is my code that works for one "price" filter.

SoapObject filterResult = new SoapObject(NAMESPACE, "catalogProductList");
filterResult.addProperty("sessionId",sessionID);

SoapObject value = new SoapObject(NAMESPACE, "associativeEntity");
value.addProperty("key", "in");
value.addProperty("value", "50.0000");

SoapObject complexFilter = new SoapObject(NAMESPACE, "complexFilter");
complexFilter.addProperty("key","price");
complexFilter.addProperty("value",value);

SoapObject filterArray = new SoapObject(NAMESPACE, "complexFilterArray");
filterArray.addProperty("item",complexFilter);

SoapObject filters=new SoapObject(NAMESPACE, "filters");
filters.addProperty("complex_filter", filterArray);
filterResult.addProperty("filters", filters);

      

        
        
        
      

    

for the above code, how can I send an array of filters? Example: Price (100 to 200), (300 to 400) Brands (Brand1, Brand2, Brand3, etc.)?