Rumsey Intellectual Property Lawyers

Mr. Hiller received his JD and MBA from Pepperdine University and certificates from the Palmer Center for Entrepreneurship and Straus Institute for Alternative Dispute Resolution. Mr. Hiller has litigated hundreds of civil and business disputes, advised numerous companies on contracts, trademarks (filing, TTAB proceedings), licensing, employment matters, and represented clients in mediation, arbitration, quasi-judicial proceedings, and before municipalities.

Olav Mitchell Underdal is a licensed attorney, admitted to the California State Bar; and a registered patent attorney, licensed to practice in all patent and trademark cases before the United States Patent and Trademark Office. Mr. Underdal holds a M.S. in General Engineering from The Technical University of Denmark with concentrations in Electronics, Software Engineering & Systems Engineering, a M.S. in Computer Science/System Design from the University of Manchester, UK, and a Juris Doctor in Law from Northwestern California University School of Law. He is a co-inventor of 15 United States patents, and has drafted and prosecuted more than 130 US...

We are a boutique business law firm with over twenty-five years of combined experience representing privately held small to medium sized businesses, in the areas of business/corporate law, beverage law (wineries, breweries, restaurants) asset protection, intellectual property and real estate law. We adhere to a pragmatic approach in representing our clients by first understanding the needs/goals of our clients and then offering feasable solutions to those needs.

Heather Slotnick has over twenty years of experience working collaboratively with clients to develop high quality intellectual property (IP) portfolios while reducing legal risks. Drawing on her past in-house experiences, Heather brings an entrepreneurial, client-side perspective to the services of protecting IP rights. She is more than a lawyer offering legal solutions because Heather works with clients to develop a plan to achieve IP goals which are in line with their business goals. Heather also assists with negotiating and preparing agreements, IP analysis (including opinion letters and freedom-to-operate projects) and IP due diligence.

Prior to founding MLO, Heather...

Russell Sommers is a seasoned transactional attorney who helps individuals and businesses maximize the value of their Intellectual Property (IP) through the strategic application of copyright, trademark, trade secret, patent, and other IP laws. The Law Office of Russell Sommers offers quality legal services tailored to meet the specific IP needs of businesses and individuals in the spheres of business, technology & entertainment. The Law Office of Russell Sommers: Creative Legal Practices for Creative Legal Minds. TM

David A. Sergenian is the founder of Sergenian Law, a Professional Corporation. His practice concentrates in the areas of copyright, trademarks, trade secrets, partnership and startup disputes, appellate practice, and general commercial litigation. In addition, he has extensive experience in patent law, securities litigation, entertainment litigation, and employment actions. He has represented clients on “both sides of the v.,” including numerous Fortune 500 companies, in litigations, trials, arbitrations, and alternative dispute resolutions.

Ginam Lee has been a California licensed attorney since 1999. He is also admitted to practice in the United States District Court, Central District of California as well as the United States Court of Appeals for the Ninth Circuit. His areas of practice are litigation, real estate, entertainment, intellectual property, alcoholic beverages, franchises, and business affairs. Mr. Lee began his legal career as a legal assistant at a boutique criminal defense firm of Beck & DeCorso in downtown Los Angeles. Since then, he has worked in various legal capacities at major firms such as O'Melveny & Myers in...

Jubin Dana is the founder and principal attorney of Dana Legal Services. After obtaining a Bachelor of Science in Electrical Engineering, Jubin went on to earn a Juris Doctor from Oklahoma City University School of Law. Jubin has always had a passion to help others and that passion translates through to his interactions with Dana Legal Services’ clients. His main focus at DLS is to ensure his client’s future business revenue is secure. As his philosophy holds: “Building an IP portfolio without connecting it to the business model is a missed opportunity to grow the company.” His expertise in IP...

Digital business lawyer, founder and managing attorney of The Internet Law Group, a preeminent law firm dedicated offering comprehensive legal services to clients with e-commerce and other internet-related legal needs. 

Patent Attorney, Dorian Cartwright, has over 20 years of experience in providing intellectual property services to hi-tech companies of Silicon Valley and worldwide. He specializes in patent prosecution matters before the U.S. Patent and Trademark Office, primarily in the electrical arts, and additionally, supports patent litigation and patent licensing matters. His technical expertise includes computer networking, computer architecture, microprocessors, video compression and recognition, social networking, mobile apps, digital and analog circuits, and robotics, among others.

Mr. Cartwright understands the interplay of technology and business objectives. Currently, at the Law Office of Dorian Cartwright, a range of clients from large technology companies,...

Judge Suzanne K. Nusbaum (Ret.) brings a wealth of experience to her ADR practice. A Fellow of the Chartered Institute of Arbitrators, with specialized expertise in commercial contract, employment, health care, real estate and intellectual property matters, she serves on many ADR panels, including the American Arbitration Association's National Roster of Arbitrators and Mediators, the International Centre for Dispute Resolution (ICDR), Arts Arbitration and Mediation Services (AAMS), the American Health Lawyers Association (AHLA), Kaiser Permanente, the World Intellectual Property Organization (WIPO), and the Financial Industry Regulatory Authority (FINRA). Judge Nusbaum arbitrates and mediates legal fee disputes for the State...

Dan Rogers is licensed to practice law in the state of California, including the Eastern Federal District Court. For twenty years he’s been intimately involved with technology and creative development, working in senior executive positions at IBM, Sierra On-Line, Virgin Interactive, and Interactive Studio Management. He’s also been involved in more than a dozen million unit-selling video games. Dan’s writing, research, and lectures are published in leading industry magazines and publications, and his work in the area of video game acquisitions have helped many understand the dynamics of this growing industry. MIT’s Sloan School of Management and other...

A Los Angeles motorcycle accident attorney, Howard Kornberg is AV® Preeminent™ Peer Review RatedSM by Martindale-Hubbell®, the highest rating an attorney can receive from his or her peers. He has extensive experience assisting clients in personal injury and wrongful death cases arising from accidents involving motorcycles, bicycles, scooters, Segways, and other motorized vehicles.

Paul’s practice focuses primarily on complex business litigation. He was recently named one of the “Top 100 Attorneys in Southern California” by Los Angeles Magazine, has the highest AV rating in Martindale Hubbell, and is regularly listed in various publications as one of the top attorneys in his field.

His practice areas include business and commercial litigation, False Claims Act cases, corporation and partnership disputes, professional liability litigation, entertainment and intellectual property litigation, defense of non-profit and other charity-based organizations, products liability litigation and all related appellate work.

Victor A. Bullock, the founder of our firm, is a solution-focused, client-centered attorney with broad legal knowledge and experience. Professional experience includes providing counsel to individual, government and corporate clients with a focus on balancing organizational and business needs against legal risks. Experienced in counseling on regulatory and commercial matters, as well as defending and prosecuting multi-million dollar lawsuits and exposures including general liability, intellectual property, employment and breach of contract lawsuits.
Mr. Bullock has compiled that experience and helps ambitious and creative business owners reach their big goals. Together with his team, he assists entrepreneurs, creatives, artists, photographers,...

Mick Longo is an attorney licensed to practice law in the States of California, Florida, North Carolina and Oregon. Motivated by an entrepreneurial desire to change the way law firms operate, Mr. Longo founded Longo & Alach LLP with partner Patrick Alach in 2009. In 2013, Mr. Longo orchestrated and oversaw Longo & Alach LLP’s expansion to Miami, Florida and then in 2015 he expanded the firm again to Charlotte, North Carolina. His practice areas include Entertainment Law, Sports Law, Business Law, Cannabis Law, Hospitality Law, Real Estate Law, Privacy Law and Legislative Advocacy.

Mr. Longo represents a myriad...

Music and entertainment law was a natural progression given my background. Having had jobs / positions in production, publishing, artist and label management, I have unique perspective. I love helping artists with their business issues so they can focus on developing their craft.

Daniel Reisman is a passionate and dedicated employment law attorney in the Los Angeles area. He received his JD from USC Law School and shortly after began representing clients from all walks of life. Daniel is devoted to handling cases involving employment law, including matters of discrimination, harassment, retaliation, and other complex issues. He understands how challenging and overwhelming it can be for individuals to try to resolve these matters, which is why he founded his firm to provide relief and support. Daniel is driven to obtain a favorable and just outcome for each and every client he represents. His...

Ethan D. Kirschner is an experienced litigator with clients in California, throughout the United States, and overseas. Originally from Wisconsin, Mr. Kirschner was a champion high school and college debater. He has a B.A. in Political Science from the University of Michigan, graduated cum laude from the University of Minnesota Law School, and received an LL.M. in intellectual property law from the University of California, Berkeley.


Mr. Kirschner has been practicing law since 2005. He is licensed to practice law in California.

Cyndie M. Chang is the Managing Partner of the firm's Los Angeles office and a member of the firm's governing Partners Board. Ms. Chang manages risks and resolves business challenges. She advises and partners with clients to defend them in commercial disputes, enforce their rights, mitigate exposure, and litigate their commercial disputes. She has often handled corporate litigation involving mergers & acquisitions, asset or stock sales, fraud, securities, purchase and sale agreements, business or partner break-ups. She also has handle many other complex or class action disputes involving contracts, trademarks, licensing, products liability, product safety and recall, construction defect, trade...

An experienced attorney specializing in criminal law, intellectual property law, regulatory compliance, corporate governance, and litigation. Admitted in China (2010) and California (2019). Strong science and technology background. HIGHLIGHTS: • Extensive litigation experience in U.S. courts and Chinese courts. • Excellent at negotiating and communicating with lawyers, government agencies, and clients from different countries. • Former government lawyer in a major Chinese business regulatory agency. • Science background and IP law practice experience.

Pauline Isidro is an Associate Attorney at Koza Law Group, specializing in estate planning and business law. She holds a B.A. in English from the University of Southern California, as well as a Juris Doctorate degree from Thomas Jefferson School of Law. A veteran of the public relations industry, Ms. Isidro previously provided strategic publicity and product placement consultation services for various clients at a Hollywood, California-based boutique P.R. firm. Ms. Isidro is currently an active member of the State Bar of California where she also holds membership with the Trusts and Estates Section. She is...