College of Law, where he teaches in the constitutional, equity, conflict of laws and refugee law programs. Jurisprudence Gummow's judgments are notable for their careful attention to statutory language and context, and are marked by a thorough and scholarly examination of doctrinal history. Gummow is particularly known for his contribution to intellectual property law and equity. Any attempt to select notable judgments of Justice Gummow is made difficult because he is so often a participant in joint judgments, whose authorship cannot be attributed. However, some of his more notable individual opinions include: Breen v Williams, Kable v Director of Public Prosecutions for New South Wales, The Wik Peoples v The State of Queensland, Hill trading as R F Hill & Associates v Van Erp, Pyrenees Shire Council v Day, Scott v Davis, Roxborough v Rothmans of Pall Mall, and Al-Kateb v Godwin. Gummow is also the author of, or participant in, numerous leading judgments in intellectual property law. See, for example: Werner & Co v Bailey Aluminium Products (1989), Advanced Building Systems v Ramset Fasteners (1998), Prestige Group v Dart Industries (1990), ConAgra v McCain Foods (1992). Statistics in recent years have consistently shown Justice Gummow to be most likely to participate or be joined in a majority opinion. He only dissented once in 2006, out of 55 judgments. Justice Gummow also often joins with Justice Hayne; in 2006 this number was 40 (75.47%) joint judgments. Similarly, in the same year Justices Gummow and Hayne joined each other in judgment in all 11 constitutional cases. Michael McHugh, who served on the court with Gummow for ten years, has called Gummow as a "great judicial politician", referring to his ability to convince other justices of the court to join in his opinions. Publications Gummow has written extensively and has published numerous essays and articles. He is the author of books including Change and Continuity: Statute, Equity, and Federalism, which is based upon the lectures he delivered at Oxford University in 1999 as part of the Clarendon law lectures series. These lectures take up themes of continuity and change in the law, particularly as they appear in the great common law jurisdictions. He is a co-author of Jacobs' Law of Trusts in Australia, and Equity: Doctrines and Remedies, the pre-eminent text on equity in Australia. Gummow also wrote, with Dyson Heydon and Robert Austin, several editions of Cases and Materials on Equity