The USPTO assigns design search codes to recognizable images that appear in each application to register a stylized mark. By conducting a search of the USPTO’s Trademark Electronic Search System, one may identify the registered marks that include a specific design pattern. For example, shamrock images are categorized under design search code 05.03.06. Sources: USPTO.gov If you have any questions regarding the content of this communication, please contact Jonathan R. Wachs: email@example.com | 301.575.0302. If you would like to subscribe to receive Friday Factoids® in your inbox click here.