The name-change to Bayerische Motoren Werke compelled management to devise a new logo for the company, therefore the famous BMW trademark is designed and patented at this time. However, they remained true to the imagery of the previous Rapp Motorenwerke emblem. Thus, both the old and the new logo were built up in the same way: the company name was placed in a black circle, which was once again given a pictorial form by placing a symbol within it. By analogy with this, the blue and white panels of the Bavarian national flag were placed at the center of the BMW logo. Not until the late 1920s was the logo lent a new interpretation as representing a rotating propeller.