Lord Templeman made significant contributions to English law during his time as a judge, both within and outside his specialist field of tax law and intellectual property law. He gave leading speeches upholding orthodox doctrine against calls for reform in the important land law cases of "Prudential Assurance Co Ltd v London Residuary Body" 2 AC 386 and "Rhone v Stephens" [1994 2 AC 310. He also sponsored the Land Registration Act 1988, which led to the land register of England and Wales being open to the public for the first time in 1990.