Were Jeffrey Salt's fifth amendment due process rights violated when the District Court, in a federal civil trademark case between two corporations, ruled that he was bound by an injunction and subject to imprisonment for civil contempt as a non-party, after denying him entry into the case as a party, thereby prohibiting him from asserting his individual right to disputed intellectual property?

Did Jeffrey Salt's Fifth Amendment due process rights violate when the District Court ruled he was bound by an injunction and subject to civil contempt as a non-party?