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Erin is an associate in the White Collar, Investigations, Securities Litigation & Compliance group in Orrick's San Francisco office.
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).
Sarah (Ying) Zeng, a partner in Orrick’s Beijing office, is a member of the M&A and Private Equity Group. She has more than 25 years of corporate law experience serving Chinese state-owned enterprises (SOEs) and U.S. multinational companies.
Sarah’s practice focuses on China outbound M&A, foreign direct investment (FDI) transactions in China and other cross-border transactions with Chinese components. She has extensive experience in representing Chinese SOEs, private corporations and private equity funds, as well as multinational corporations in cross-border M&A transactions, including divestitures, joint ventures and FDIs.
Having served as general counsel of the Hong Kong-listed Weichai Power (China’s largest engine manufacturer), and the vice president and country manager (China) for El Paso Corporation (a Fortune 500 energy company), Sarah is uniquely positioned to provide clients with practical, specific and dynamic advice with her combined legal and business insights and in-depth knowledge in the energy, infrastructure and manufacturing sectors. During her time at El Paso Corporation, Sarah chaired the boards of four major power plants owned by the company in China for eight years.
Prior to joining Orrick, Sarah was a managing partner at Dentons’ Beijing office.
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.
Yaoli (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:
Beijing; New York
Beijing; New York
Jinsong (Jeff) Zhang, a partner in Orrick’s Beijing and New York offices, is a trusted advisor to international and Chinese investors and corporates on their transactional, regulatory and compliance matters. His work spans a variety of industries, including financial services, technology (automotive technology and mobility, life sciences, and Fintech), as well as energy and infrastructure.
Being recognized by Legal 500 Asia Pacific, clients have praised Jeff as a practitioner “who is dedicated to serving his clients and is able to leverage off the firm’s global network to provide services in specialized areas”.
Jeff’s practice focuses on China-related inbound and outbound mergers and acquisitions and private equity transactions. He has extensive experience with share and asset acquisitions, growth capital and buyout transactions as well as tender offers, privatizations, restructurings, spin-offs, strategic alliances and joint ventures.
In addition, Jeff advises multinationals, financial institutions and private equity funds on their general corporate, capital markets and regulatory compliance matters.
Prior to joining Orrick, Jeff was a partner at the New York office of an international law firm. Earlier in his career, Jeff practiced in New York, Hong Kong, and mainland China with two major international law firms, and also served as the Head of Legal and Compliance of the U.S. operations of a leading Chinese investment bank, where he gained tremendous experience in helping Chinese clients navigate regulatory and compliance issues in the U.S.
Jeff serves on the International Advisory Board of Duke Law School, where he was also appointed as a Senior Lecturing Fellow. In his leisure time, Jeff serves on a volunteer basis as the Chief Legal Officer of The Chinese Finance Association (TCFA), a non-profit professional organization headquartered in New York with more than 7,000 members globally.
Elisa Zheng is a member of the Structured Finance Group in Orrick’s New York office.
Elisa represents investment banks, asset managers and issuers in matters involving collateralized loan obligations, securitizations and other structured financial products.
Dr. André Zimmermann, a Certified Specialist for Employment Law (Fachanwalt für Arbeitsrecht), heads Orrick’s German Employment Practice. With well more than ten years of international experience, André is well-versed in restructuring and headcount reduction, employment aspects of M&A transactions and employment related litigation with a sector focus on technology companies and multi-jurisdictional and cross-border employment law issues.
André is listed as "frequently recommended" employment law expert by JUVE Handbook of German Commercial Law Firms, editions 2017/2018, 2018/19 and 2019/2020, Germany's leading lawyer ranking, and has been ranked as top employment lawyer by renown German business weekly WirtschaftsWoche 2019. Clients recommend André to JUVE as “straight shooter" and "always refreshingly honest".
Our clients praise André's "creative and efficient style of working" and "a very practical and efficient style of providing advice", referring to him as "extremely responsive and accessible when we have urgent matters" and as "an excellent advocate in court hearings".
André advises companies on a wide range of HR legal matters with a special sector focus on technology companies, including hiring and discrimination concerns, misclassification, multi-jurisdictional and cross-border employment issues, HR data privacy compliance, roll out of employee handbooks and policies, performance management and terminations. Having long-standing experience in negotiating with works councils and unions in restructuring measures of all kind, a special focus of André's practice is on restructuring, outsourcing and headcount reductions. He is an acknowledged specialist in employing third-party personnel, especially through temporary agency work.
André has thorough knowledge of and genuine passion for the tech industry. Most recently, he has advised leading multinational technology companies such as Pinterest, Flexera, GitHub, Nvidia, Optimizely, Sabre and Splunk on various employment matters.
André is a core member of our global employment law practice consisting of 80 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 Zinn oversees Orrick’s sector focused business development, client satisfaction, alumni program and strategic events functions, globally.
Catherine and her team of experienced Managing Directors and other professional staff help ensure the firm is a steward of our clients' businesses. The team 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, the team meets with clients to solicit their feedback and work with the firm’s relationship partners and teams to deliver value added services – and real innovation.
Catherine spearheads the firm’s strategic partnerships with thought leaders, community organizations, and other influencers - designed to add value for our clients and enhance the firm’s social impact. Additionally, Catherine commits a significant portion of her time connecting high profile executives, alumni, and other friends of the firm to jobs and to public company board seats, with an emphasis on diversity.
Previously, Catherine held senior client relations roles at DLA Piper and JAMS. With 20+ years of experience doing professional services sales, Catherine has built a reputation as a “super-connector” throughout the legal, tech, and financial services industries. Catherine’s passion in life is coaching and helping other people achieve their goals.
Catherine is a leader in the community:
Catherine has been recognized as a Woman of Influence by the Silicon Valley Business Journal and as a Woman of Achievement by Legal Momentum.
In January of 2015 she was inducted into the International Women’s Forum and in 2016 joined American Leadership Forum’s roster of senior fellows along with other top c-level executives and community leaders.
Catherine is a founding member of the National Finance Committee for Kamala Harris’ 2020 presidential campaign. She has also served on the 2011 Barack Obama National Finance Committee, and as the National Chair of Lawyers for Obama, and Hillary Clinton’s 2008 National Finance Committee.
Catherine was a three-sport varsity athlete in college, tennis instructor, personal trainer, and head coach of a top ranked high-school tennis team in Washington, DC. Catherine is a graduate of Hamilton College with a degree in Economics.
Alexandre Zuber is a corporate lawyer based in Orrick’s Paris office, with a focus on M&A, Private Equity and Equity Capital Market.Prior to joining Orrick, Alexandre worked on corporate matters as a legal intern at August & Debouzy, CMS Bureau Francis Lefebvre, Altana and Orrick. Alexandre also worked at Total and Ardian.
Mitch Zuklie serves as Chairman and Chief Executive Officer of Orrick. Under Mitch’s leadership, the firm has pursued a strategy to be a leading advisor to the global Technology & Innovation, Energy & Infrastructure and Finance sectors. Financial Times has chosen Orrick as the Most Innovative Law Firm in North America in 2016, 2017 and 2018. And Fortune has selected the firm among the 100 Best Companies to Work For three years in a row.
Named by Chambers USA as an “eminent practitioner,” Mitch 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.
Mitch has led the firm’s portfolio approach to innovation, including the transformation of its West Virginia operation into a center for analytics and innovation, the launch of Orrick Labs to develop customized technologies, and the creation of partnerships with leading innovation initiatives in the industry. He has also led the firm’s entry into new markets, including Boston, Santa Monica, Houston, Austin, and Geneva.
He serves on the Boards of the Leadership Council for Legal Diversity and the Berkeley Center for Law and Business and the Advisory Boards of the Stanford Law School Center on the Legal Profession and the Harvard Law School Center on the Legal Profession. He is also a member of the Board of the Wild Salmon Center.
He and his wife, Holly, have been married for more than 25 years. They have two children, Hannah (20) and Angus (17). Mitch posts regularly on social media about Orrick, venture capital, innovation and other interests. Follow him on Twitter and Instagram.