Designer Geoffrey Lee created the font for the Stephenson Blake foundry in 1965. This sans serif display font is very heavy and condensed in the grotesque style, similar to . Use Impact in display situations requiring a strong statement. Impact is part of the Linotype Library. Impact is a trademark of Stephenson Blake. Helvetica is a trademark of Heidelberger Druckmaschinen AG, which may be registered in certain jurisdictions, exclusively licensed through Linotype GmbH, a wholly owned subsidiary of Heidelberger Druckmaschinen AG.