If any exception, section, part, phrase, or provision of this chapter or the application thereof be held invalid by any court of competent jurisdiction, such judgment shall be confined in its operation to the exception, section, part, phrase, provision, or application directly involved in the controversy in which such judgment shall have been rendered, and shall not affect or impair the remainder of this chapter or the application thereof.
71 Del. Laws, c. 318, § 4.