Umberg/Zipser LLP is a premier business litigation and intellectual property boutique law firm. Drawing on decades of experience in some of the nation’s largest and most prestigious law firms, as well as national and state government service, our lawyers provide exceptional work with the unparalleled personal service of a boutique.
Umberg/Zipser believes in giving back, both to our community and to our profession. We regularly handle pro bono matters, and our attorneys devote countless hours to supporting — and leading — professional and community organizations. It would be difficult to find another firm in Orange County, regardless of size, that can boast the number of community leaders that exist at Umberg/Zipser.
By combining big-firm experience with small-firm efficiencies, we can handle complex matters for large companies, but we also are nimble enough to represent small companies and entrepreneurs. Our clients come to us because we deliver the highest quality work product together with extraordinary service.
We Have the Experience to Handle a Wide Array of Matters
We Have Exceptional Attorneys Who Stand Ready to Serve Our Clients
Brent S. Colasurdo
Ryan S. Dean
The Honorable Halim Dhanidina (Ret.) is a partner at the prestigious criminal defense firm of Werksman Jackson & Quinn LLP in Los Angeles, where he handles challenging and high profile criminal cases. He serves as co-counsel with Umberg/Zipser in a variety of civil matters as the firm’s Senior Trial and Appellate Counsel.
Ethan Feng is an associate at Umberg/Zipser where he focuses his practice in complex commercial litigation, professional liability disputes, and employment litigation.
Martin Fessenmaier, Ph.D.
Mark A. Finkelstein
Mark Finkelstein is a partner at Umberg/Zipser with more than 25 years of intellectual property and complex litigation experience.
Scott B. Garner
Scott B. Garner is a partner at Umberg/Zipser in Irvine, California. He represents clients in complex business litigation matters, with a particular focus on professional liability disputes and ethics counseling.
Phillip R. Kaplan
Phillip R. Kaplan is a recognized leader in the Orange County legal community, and is an accomplished business trial lawyer with a record of handling his client’s most difficult cases.
Molly Magnuson is an experienced, results-oriented litigation attorney. Molly’s experience comes not only from working for significant clients, but also from working in some of America’s top law firms, which has created exposure to high-stakes, complex commercial litigation.
Priti Phukan, Ph.D.
Carole E. Reagan
Todd W. Smith
Adina W. Stowell
Adina Stowell specializes in complex litigation involving corporate, commercial, trade secret, and real estate disputes in both state and federal courts.
Jason Tejani concentrates his practice on patent prosecution and intellectual property (IP) transactional matters. Prior to his legal career, he was a chemist at a global chemical company.
Thomas J. Umberg
Vikki L. Vander Woude
Dean J. Zipser
Dean J. Zipser is a recognized leader in the Orange County legal community, having served as President of the Orange County Bar Association (OCBA) along with many other professional leadership positions.
NEWS and EVENTS
Umberg/Zipser in the Community
Dean Zipser Authors Timely Article for OCBA’s Orange County Lawyer Magazine entitled “Mentoring and Training New Firm Lawyers in the 2020s.”
Umberg/Zipser LLP partner, Dean J. Zipser recently authored a timely article for the Orange County Lawyer, published by the Orange County Bar Association (OCBA), entitled “Mentoring and Training New Firm Lawyers in the 2020s. In this article, Dean discusses how the pandemic has created a need for successful law firms to navigate a new work paradigm, and why attention to mentoring is essential in
Umberg/Zipser LLP (U/Z), a premier business litigation and intellectual property law firm located in Irvine, California, has again been ranked Tier One on the “Best Law Firms” list by U.S. News & World Report for the Orange County Metropolitan area. The firm has received this outstanding recognition every year since its inception in 2014. The ranking highlights top law firms, recognized by their clients
Umberg/Zipser LLP partner, Vikki Vander Woude, recently authored an article for the Orange County Lawyer Magazine, published by the Orange County Bar Association (OCBA), entitled “NFTs, the Blockchain and Why We Should Care.” In the article, Vikki and her co-author, Carolyn Tan, explain the basics of Web3 and blockchain technology and the many evolving and related legal issues. Vikki practices complex business litigation
Umberg/Zipser LLP partner, Todd W. Smith, recently authored an important article for the OC Lawyer, published by the Orange County Bar Association (OCBA), entitled “The Secrets of Success: Crafting Attorney Bios While Safeguarding Client Confidentiality.” In the article, Todd discusses the nuances of successfully crafting attorney bios, while still adhering to confidentiality obligations as governed by California’s Rules of Professional Conduct. Notably, an attorney’s
Umberg/Zipser LLP, a premiere business litigation and intellectual property law firm located in Irvine, CA, has again been named an honoree of The Civic 50 OC by OneOC and Points of Light, the world’s largest organization dedicated to volunteer service. The award recognizes Umberg/Zipser as one of the 50 most community minded companies in Orange County, as determined by an independently administered and scored survey. The Civic 50 OC initiative, modeled after Points of
Umberg/Zipser LLP (U/Z) was proud to support Community Legal Aid of SoCal’s (CLA) Justice Served 20’s-themed event held on October 6th in Santa Ana, CA. U/Z partner, Mei Tsang, is the organization’s current President and U/Z has been a long-time supporter of their work. CLA’s mission is to fight injustice and advocate for social, economic, and racial equity by providing compassionate, holistic, and impactful
If you are an exceptional attorney who thrives on delivering top-notch client service, and would enjoy practicing law in a small, collegial environment, we invite you to contact us to learn more about how we can support your career growth. Umberg/Zipser is proud of its diversity, and is an equal opportunity employer.
At Umberg/Zipser LLP, it’s the quality of our people that makes our firm and work environment rewarding and unique. We are proud to have been recognized by our team as one of Orange County’s “2022 Best Places to Work.”
If you are an exceptional attorney, who thrives on delivering top-notch client service, and enjoys practicing law in a strong team culture, we invite you to contact us to learn more about how we can support your career growth.
Umberg/Zipser is also proud to have created a work environment that promotes and honors diversity and we are an equal opportunity employer. We look forward to hearing from you soon.