Modifiers matching mark:

• identifiable,
• special,
• diacritical,
• diacritic,
• visible,
• opaque,
• grammatical,
• colored,
• permanent,
• unique,
• small,
• fixed,
• temporary,
• distinctive,
• physical,
• proprietary,
• simple,
• visual,

Simple categories matching proprietary:

• protection,
• image,
• information,
• format,
• content,
• application,
• action,
• system,
• right,
• part,
• notice,
• scheme,
• software,
• substance,
• database,
• material,
• knowledge,
• data,
• nature,
• mark,
• hardware,
• area,
• marking,
• component,
• activity,
• medium,
• institution,
• facility,
• space,
• process,
• code,
• product,
• identifier,
• way,