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Patricia Zeigler, Of Counsel in the Washington, D.C., office, focuses her practice on antitrust law with particular emphasis in Hart-Scott-Rodino Act compliance and counseling. Her experience includes advising clients on issues of reportability and interpretations of the Hart-Scott-Rodino Antitrust Improvements Act and its regulations.
Pat also has expertise in the applicability of foreign premerger requirements and filings with regulators in the European Union, Asia and Canada.
Pat served as antitrust counsel to two large industry groups establishing Business to Business exchanges for E-commerce transactions. She currently serves as general counsel to five large trade associations in a wide range of industries. In addition, Pat works with trade groups to set up and run joint purchasing organizations.
Prior to joining the firm, Pat practiced antitrust law for over a decade with Pillsbury Madison & Sutro.
In addition to being admitted in the District of Columbia, Pat is also admitted in California (inactive).
Philippe Zeller is an Energy & Infrastructure lawyer in Orrick’s Paris office. He provides regulatory and public procurement law advice on public facilities around the world, notably in France and Africa.
Recognized by Legal 500 EMEA as a "key figure" in Administrative and Public law, Philippe is an expert in the telecommunications and energy fields and has significant experience in mining. He also advises on both local and large-scale infrastructure development projects in his specialist sectors.
Philippe is often called upon to provide in-depth regulatory expertise on concessions and PPP for high-speed Internet and telecommunications networks as well as hydro power plants. His practice also includes advising on data protection, notably on the implementation of regulatory constraints and requirements in regards to French legislation.
Before joining Orrick, Philippe Zeller worked for Willkie Farr & Gallagher and Langer-Netter-Adler.
In addition to his practice, Philippe teaches Economic Public Law at the University of Paris XII and a "Negotiating and Drafting Contracts" seminar at the University of Toulouse.
Tom Zellerbach knows how to quickly and creatively resolve IP litigation, safeguarding his clients’ precious time and financial resources.
When representing global technology leaders or emerging companies, he looks at each case with fresh eyes, tailoring his strategy to each client’s particular legal and business objectives, as well as their company culture.
Having handled dozens of trademark, copyright and advertising disputes before the federal courts, U.S.P.T.O., T.T.A.B. and the National Advertising Division, he knows how to obtain the best possible result, whether through a trial victory or by resolving a dispute before litigation.
Dr. Yuanjia (Gina) Zhang, a patent agent in the Silicon Valley office, is a member of the Intellectual Property Group. As a patent agent, Dr. Zhang performs tasks related to patent prosecution including preparing and prosecuting patent applications.
Dr. Zhang has broad technical background and experience in materials science and engineering, electronic devices, nanotechnology, and printing technology. In particular, her technical areas include nanofabrication, semiconductors, organic electronics, molecular electronics, optoelectronics, electrophotography, inkjet printing, surface engineering, color science, and image processing.
Prior to joining Orrick, Dr. Zhang worked at Anova Law Group, where she prepared and prosecuted patent applications for large Chinese companies and prestigious universities, in industrial areas including Internet technology and semiconductor devices. Before joining Anova Law Group, Dr. Zhang was a member of research staff in Xerox Innovation Group at Xerox Corporation. Dr. Zhang also has prior industrial experiences at IBM T.J. Watson Research Center and Advanced Semiconductor Manufacturing Corporation, in Shanghai, China. Dr. Zhang’s doctoral research focused on the electronic charge injection and transport in nanoscale organic thin film transistors.
Dr. Zhang has technical publications in journals including Advanced Materials and Journal of Applied Physics. Dr. Zhang is also an inventor with six U.S. patents granted and other U.S. and foreign patent applications pending.
Shelley Zhang, a partner in Orrick’s Beijing office, is a member of the Intellectual Property Group. Her practice focuses on IP prosecution and enforcement. Shelley has extensive experience in patents, trademarks, domain names, copyrights and trade secrets.
Shelley's related IP experience includes the following:
Dr. André Zimmermann, a Certified Specialist for Employment Law (Fachanwalt für Arbeitsrecht), heads Orrick’s German Employment Practice. With around ten years of international experience, André is well-versed in restructuring and headcount reduction, employment aspects of M&A transactions, and employment related litigation.
André works closely with our clients' in house counsel, management and human resources to ensure business-savvy and goal-oriented advice that meets the needs of our clients' industry sector and entrepreneurial culture.
André advises companies on a wide range of HR legal matters, including hiring and discrimination concerns, reclassifications risks, multi-jurisdictional and cross-border employment issues, HR data privacy compliance, roll out of employee handbooks and policies, performance management and terminations with a special sector focus on technology companies. Most recently, André has advised technology companies such as AppAnnie, Facebook, Flexera, Github, NVIDIA, Optimizely, Sabre, Sensata Technologies, Snap, Splunk, The Trade Desk and Visa on various employment matters in Germany.
A particular focus of his practice is on restructuring, outsourcing and headcount reductions. André has a long-standing experience in negotiating with works councils and unions and in restructuring measures of all kind. He is an acknowledged specialist in employing third-party personnel, especially through temporary agency work.
André is a core member of our global employment practice consisting of 70 specialized employment lawyers and world leading practices in our offices in the United States, Asia and Europe, offering the highest level of employment advice in all major jurisdictions. Our well-established teamwork across offices
ensures international advice in employment law in our clients' cross-border projects.
As Orrick’s Chief Client Officer, Catherine helps to ensure that the firm is a steward of our clients’ businesses. Catherine supports Orrick’s commitment to each client’s cause by listening to their views and concerns, responding to their needs, and articulating a shared understanding of priorities.
Among other responsibilities, Catherine meets with clients to solicit their feedback and works with the firm’s client relationship partners and teams to help deliver value added services. She also coordinates the firm’s strategic partnerships with thought leadership and community organizations, also designed to add value for our clients and enhance the firm’s social impact.
Previously, Catherine held senior client relations roles at DLA Piper and at JAMS, the country’s largest private provider of mediation and arbitration services.
Catherine serves on the boards of various organizations including: Silicon Valley Directors’ Exchange, Law Foundation of Silicon Valley, Bay Area Cancer Connections, and Legal Services Sales Organization. In January of 2015, the Secretary of Health and Human Services appointed her to the Board of the National Foundation for Fitness, Sports and Nutrition for a six-year term.
In 2008, Catherine served on Hillary Clinton’s National Finance Committee, and, beginning in 2011, she served on Barack Obama’s National Finance Committee as the National Coordinating Co-Chair of Lawyers for Obama.
Currently, she is a Community Liaison for Kamala Harris for Senate. Catherine was recognized as a 2014 Woman of Influence by the Silicon Valley Business Journal and a 2015 Woman of Achievement by Legal Momentum. In January of 2015 she was inducted into the International Women’s Forum and invited to be an American Leadership Forum Fellow for 2015-2016.
Joel Zipp, a lawyer in Orrick’s Washington, D.C., office, is a member of the firm’s Energy & Infrastructure group with 40 years of experience in the energy industry. Joel advises a range of clients on energy market and regulation matters, including pipelines and shippers, on energy transactions, energy project development, the acquisition of energy assets and capacity.
He has extensive experience working with clients on conventional energy projects, such as oil and gas pipelines and LNG facilities. He has also advised on electric transmission matters and renewable energy issues. Prior to entering private practice, Joel served as an attorney in the Federal Energy Regulatory Commission's (FERC) Office of General Counsel, where he worked on large-scale energy projects such as LNG and coal gasification. He was also assistant director in its first Office of Enforcement, and a past president of the Energy Bar Association.
Joel advises and represents investors on federal and state energy regulatory and transactional matters surrounding the acquisition and construction of assets totaling billions of dollars in value. Joel has been general counsel, secretary, and project counsel for several joint venture interstate pipeline projects, including "greenfield" projects. He has been responsible for all legal aspects of joint venture and other pipeline projects from inception to commercial operation. In some cases, he served as part of the senior management team involved in all business issues and strategic decision-making.
In addition, Joel has advised on a range of rate and regulatory matters relating to electric energy markets administered by independent system operators (ISOs), including: representation before the FERC and as a voting representative for a client, at New York and New England ISOs management committee and subcommittee meetings; representation before NEPOOL and litigation before the NEPOOL Review Board; litigation on energy market prices in ISO administered markets; electric transmission access and pricing; and RTO formation.
His representation includes negotiating and drafting project agreements such as: construction, operation and maintenance and joint ownership agreements; the terms and conditions of FERC electric and gas tariffs; undivided ownership interests; precedent agreements and transportation contracts; and interconnection agreements. He also has been responsible for project financing, permitting, environmental review and right-of-way acquisition.
Joel also has broad experience working with local distribution companies, interstate and intrastate pipelines, midstream companies and end users on the full range of rate and certificate proceedings before the FERC, and has assisted European clients seeking to acquire ownership of and capacity in U.S.-based LNG terminal and related pipeline facilities. His experience in these matters includes: the heads-of agreement, LNG supply agreement, terminal use agreement, interconnection agreement and downstream transportation arrangements. He also negotiated a landmark ground lease for a LNG terminal host site and pipeline on publicly-owned land.
Shasha Y. Zou is a litigation managing associate in the New York office. Her practice focuses on complex commercial litigation, including in matters involving intellectual property, commercial contracts, and securities.
Shasha's engagements include representing a major biotechnology company in an ICC arbitration proceeding and related proceedings in federal district court in connection with allegations of patent infringement. She also has recently represented a major software company in a jury trial over copyright infringement of source code and defended a satellite service provider in a bench trial against billion-dollar claims brought by the Department of Justice and four state Attorneys Generals related to its telemarketing practices.
Shasha takes an active role in Orrick's pro bono program. She has worked on asylum applications and also obtained a successful settlement on behalf of a client in the Southern District of New York in a copyright matter after the court granted summary judgment on the issue of copyright ownership.
Mitchell Zuklie serves as the global Chairman and Chief Executive Officer of Orrick.
He is an experienced business and legal advisor who has completed hundreds of venture capital financings and numerous public offerings, mergers, acquisitions and licensing transactions. He counsels technology companies at all stages of their life cycles, as well as their founders, advisors and investors. Representative clients have included Nest Labs, Planet Labs, Nanosolar, eHarmony, Royal Dutch Shell, Kleiner Perkins, Benchmark Capital, Pandora, Oracle, Goldman Sachs, Martha Stewart Living, Bessemer Venture Partners and Sequoia Capital. Recent transactions he has led include, among others, Nest Labs' announced $3.2 billion sale to Google, and Goodreads' sale to Amazon.com.
Lawdragon recognizes Mitch as "one of the nation's top tech dealmakers and advisors." Named by Chambers USA as an “eminent practitioner,” he has been described as a "terrific all-around lawyer" known for "common sense and business judgment." Daily Journal named him to its lists of Top Emerging Companies Lawyers and Top Clean Tech Lawyers.
During Mitch's tenure as Orrick's chairman and CEO, the firm has pursued a strategy of leadership in the global Technology, Energy & Infrastructure and Finance sectors. The firm entered new markets in Houston, Geneva and Africa. The firm has also innovated in advancing women and diverse lawyers and adapting its model to appeal to top Millennial talent.
Mitch serves on the Board of the Berkeley Center for Law, Business and the Economy and on the Advisory Board of the Stanford Law School Center on the Legal Profession. Mitch also created Orrick's Women's Advisory Board, which is comprised of the senior executives from several leading public and private companies. Before joining Orrick, he was a Director at Venture Law Group.
He and his wife, Holly, have been married for more than 20 years. They have two children, Hannah (17) and Angus (15).