Daniel J. O’Connor

Baker & McKenzie LLP

Daniel (Dan) O’Connor is a seasoned patent trial lawyer, both jury and non-jury. His practice includes all aspects of patent litigation — substantive and procedural — including infringement, invalidity, enforceability and patent damages. He advises on equitable remedies applicable to patent cases, including preliminary and permanent injunctions.

He also counsels on and evaluates patent rights and obligations in a due diligence context. Mr. O’Connor co-authored the article “New Patent Term Affects US Licensing”, and has spoken before professional and business groups on patent topics in the US and abroad.

Mr. O’Connor specializes in intellectual property litigation, primarily patent and patent-related matters such as licensing and patent ownership disputes. He is experienced in handling litigation and disputes arising under patent and trade secret licenses, and in construing and drafting intellectual property licenses for purposes of liability or enforcement.

He has represented both patent holder or licensee and accused infringer in direct actions and declatory judgment actions, and has supervised cases in various aspects of the electrical, chemical and mechanical arts.


  • Georgetown University Law Center (J.D.) (1974)
  • University of Notre Dame (Master of Arts) (1971)
  • Loyola University, Chicago (B.A.) (1969)


  • Illinois~United States (1974)
  • U.S. Court of Appeals, Federal Circuit~United States
  • U.S. Court of Appeals, Seventh Circuit~United States


Rate : $$$

What types of cases Attorney Daniel J. O'Connor & Baker & McKenzie LLP can handle?
Baker & McKenzie LLP can handle cases related to laws concerning Copyright Application, Litigation, Intellectual Property, Transportation. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Baker & McKenzie LLP located?
Baker & McKenzie LLP is located at Blue Cross Blue Shield Tower, 300 E Randolph St #5000, Chicago, IL 60601, USA. You can reach out to Baker & McKenzie LLP using their phone line 312.861.2790. You can also check their website bakermckenzie.com.
How much would it cost to hire Baker & McKenzie LLP?
Daniel J. O'Connor lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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