The Patents (Companies Re-registration) Rules 1982
These Rules provide that when a company re-registers as a public company under the Companies Act 1980 (which re-registration does not constitute a new legal entity but merely subjects the company to certain additional company law rules) applications to the comptroller, the register of patents and other records kept at or documents issued by the Patent Office and relating to patents shall be treated as changed accordingly without the need for an application to the Patent Office.