Mr Mark Hannemann > A&O Shearman > New York, United States > Lawyer Profile
A&O Shearman Offices
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599 LEXINGTON AVENUE
NEW YORK, NY 10022-6069
NEW YORK
United States
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Mr Mark Hannemann
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Work Department
Litigation
Position
Partner
Career
Mark Hannemann is a partner in Litigation practice and is based in the New York office. He is a leading patent litigator with extensive first-chair experience for both plaintiffs and defendants in jury trials, bench trials, and ITC hearings. He has frequently appeared in the Eastern District of Texas, the District of Delaware, and other US district courts, and has a successful appellate practice.
Mark’s frequent clients have included Robert Bosch, OSRAM, and Volkswagen. He is recommended in the 2013 edition of The Legal 500 in the area of “IP – Patent Litigation: full coverage,” and the 2014 edition of New York Super Lawyers. He has also been recognized as a New York “IP Star” by Managing Intellectual Property (2014). Most recently, IAM’s Patent 1000 recommended Mark as a “legal theory and strategy thinker” (2020), noting that the Shearman team includes “an expert panel of patent litigators.” The publication also noted that “Mark is smart and efficient, and his advice and arguments are always very much to the point” (2021).
Memberships
New York
Courts
- United States District Court for the Southern District of New York
- United States Court of Appeals for the Second Circuit
- United States Court of Appeals for the Federal Circuit
Education
J.D.
B.A. in Physics
Top Tier Firm Rankings
Firm Rankings
- Finance > Capital markets: debt offerings
- Antitrust > Civil litigation/class actions: defense
- Environment > Environment: transactional
- Tax > Financial products
- Dispute resolution > Financial services litigation
- Dispute resolution > General commercial disputes
- Dispute resolution > International litigation
- Tax > International tax
- Dispute resolution > M&A litigation: defense
- Finance > Project finance
- Energy > Renewable/alternative power
- Finance > Structured finance: derivatives and structured products
- Finance > Structured finance: securitization
- Tax > US taxes: non-contentious
- Finance > Capital markets: equity offerings
- Finance > Capital markets: high-yield debt offerings
- Labor and employment > Employee benefits, executive compensation and retirement plans: transactional
- Antitrust > Merger control
- Media, technology and telecoms > Outsourcing
- Media, technology and telecoms > Technology transactions
- Finance > Capital markets: global offerings
- Antitrust > Cartel
- Energy > Energy regulation: electric power
- Energy > Energy transactions: oil and gas
- Finance > Fintech
- Real estate > Real estate finance
- Finance > Financial services regulation
- Dispute resolution > International arbitration
- M&A/corporate and commercial > M&A: large deals ($1bn+)
- Intellectual property > Patents: litigation (full coverage)
- Real estate > Real estate
- Finance > Restructuring (including bankruptcy): corporate
- Tax > US taxes: contentious
- Finance > Commercial lending
- Dispute resolution > Corporate investigations and white-collar criminal defense
- Intellectual property > Patents: litigation (International Trade Commission)
- Media, technology and telecoms > Advertising and marketing: litigation