People

Patricia Zeigler Of Counsel

Washington, D.C.

Pat also has experience 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).

Sheila Zerang Associate

Santa Monica

Jeff Zhang Partner

Beijing; New York

Being recognized by Legal 500 Asia Pacific, Jeff has received clients’ praises as “an experienced lawyer, who understands the client’s business, both internally and externally", and his "understanding of the client’s business model, industry, customers and strategic objectives enables him to advise and guide clients on highly complex and sensitive matters”. Other clients comment that Jeff “develops the best strategies and solutions for clients” and “works very hard and is recognised by clients for his ability.” In addition, he is “dedicated to serving his clients and is able to leverage off the firm’s global network to provide services in specialized areas.” (Legal 500 Asia-Pacific, 2019 - 2023)

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.

Yuanjia (Gina) Zhang Patent Agent

Silicon Valley

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 Partner

Beijing

Shelley's related IP experience includes the following:

• Patent invalidation proceedings, anti-counterfeiting, anti-piracy efforts and patent and trademark enforcement litigation in China.
• Prosecution of patent and trademark, including application preparation, office actions/oppositions procedures and reexamination procedures.
• Enforcement and technology transfer/licensing arrangements for substantial patent and trademark portfolios for companies doing business in China.
• Advising on IP protection strategies, R&D related IP issues and matters in relation to export and import control of technology.
• Assisting Chinese companies in Section 337 U.S. International Trade Commission investigations, patent infringement litigations and product liability litigations in the U.S. 
• IP due diligence and portfolio counseling.

Sherry Zhou Managing Associate

Seattle

Prior to joining Orrick, Sherry advised sponsors of private investment funds on their formation and fundraising activities, as well as institutional investors and family offices on their investment programs.

Sharon Zhou Associate

San Francisco

Jasmine W Zhu Managing Associate

Washington, D.C.

Jasmine’s litigation experience includes assisting with patent licensing negotiations, assisting with trial and witness preparation, drafting motions, petitions, oppositions, and replies, and preparing expert reports.

Jasmine has experience with a wide range of technologies including telecommunications, semiconductors, client/server systems, computer software, electronic commerce, cloud computing, virtual and augmented reality, streaming media, Internet search engines, search advertising, electronic devices, medical devices, optics and imaging.

Prior to joining Orrick, Jasmine externed at the United States Court of Appeals for the Federal Circuit. Jasmine was also a patent agent specializing in patent prosecution before the United States Patent and Trademark Office, and she worked with foreign attorneys to prosecute patents before foreign patent offices. She has advised clients on new patent applications and prosecution strategies and managed clients’ domestic and global patent portfolios.

Ke Zhu Associate

Seattle

Kyle Zhu Senior Associate

New York

Kyle represents public and private companies and private equity funds in various domestic and cross-border mergers and acquisitions transactions on both the buy-side and sell-side. Kyle is also experienced in advising clients on representation and warranty insurance and venture financings. As part of Orrick’s fintech and artificial intelligence working group, Kyle analyzes and creates thought leadership on novel legal issues related to crypto, web 3.0 and artificial intelligence.

Kyle is passionate about Diversity, Equity & Inclusion. He serves as a leader on Orrick’s New York Diversity, Equity & Inclusion Committee and Orrick’s Asian, Native Hawaiian and Pacific Islander Inclusion Network. He is also a Vice Chair of the Corporate Law Committee of the Asian American Bar Association of New York.

Wenlong Zhuge Managing Associate

New York

Wenlong represents sponsors, developers, lenders, equity investors and other financial institutions in financings, acquisitions and development of various energy and infrastructure assets, including renewable energy, power storage, digital infrastructure, among others.

Dr. André Zimmermann, LL.M. Partner

Düsseldorf; Munich

André advises companies of all stages, pre-IPO startups, scaleups, unicorns and international corporations on a wide range of matters, having handled everything from day-to-day practical advice tailored to his clients’ needs, to complex multi-jurisdictional transactions from strategic planning through post-merger integration. 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 restructurings and headcount reductions.

He has advised on the employment law aspects in over 300 M&A transactions and financing rounds across various industries. Transactional advice includes employment law advice in complex, international technology transactions, M&A projects as well as private equity and venture capital investments, from due diligence to post-closing integration.

André has thorough knowledge of and a genuine passion for the tech industry. Over the last years, André has become the go-to-advisor of several Bay Area tech-companies, leaders in their market and high-growth tech companies. Most recently, he has advised leading global technology companies such as GoPro, Pinterest, GitHub, Nvidia, Sabre, Snap and Splunk on various employment matters.

André has received several awards for his work, inter alia:

• Germany's leading lawyer ranking JUVE recognizes André as "frequently recommended" employment law expert since 2017;
• Best Lawyers and Handelsblatt have listed André as one of Germany's best lawyers in employment law since 2020;
• Germany's leading business weekly WirtschaftsWoche ranked André as one of the top employment lawyers in Germany in 2019;
• IEL Elite, an in-house guide to the world’s leading employment and labour teams, recognized André as a "Key Lawyer" in 2022.

Clients recommend André to JUVE as “straight shooter" and "always refreshingly honest". Our clients praise his "creative and efficient style of working" and "a very practical and efficient style of providing advice", referring to him as "extremely responsive and always accessible" and as "an excellent advocate in court hearings". Clients appreciate André's "clear, sound and pragmatic real-world advice" and his "in-depth knowledge of the tech employment world".