Greenfield Patents Lawyers

My practice is focused on Patent, Trademark, Copyright, and Intellectual Property Law. Based in California, I represent national and international clients from a wide range of industries.

With nearly 40 years of legal experience, you can expect skilled, knowledgeable and zealous representation. My accomplishments have resulted in numerous honors, including recognition as being among the Best Lawyers in America, Top Intellectual Property Attorneys in California, and Top 100 Attorneys in Los Angeles.

Eric works with technology companies to increase revenue and value while reducing risks from employees and operations. Eric is an expert in FDA regulated products with experience in human clinical trials all over the Untied States, Europe and Asia.

Brennan Swain's legal practice emphasizes patent and trademark law, including prosecution, litigation and client counseling.

Growing up in a family of engineers, Brennan was immersed from a young age in the engineering world, particularly the mechanical arts. While working regularly in his father's high-tech industrial coatings company in high school and college, he received hands-on experience with the inner workings of industrial machines and engines. After law school, Brennan's first job as a patent attorney also included working as an engineer for a small high-tech company. As a result of this experience, unlike many patent attorneys, Brennan has hands-on experience...

David Tsai is a Partner in Vinson & Elkins LLP’s San Francisco office. David's practice focuses on patent, trade secret, complex breach of contract, and product defect litigation for companies innovating biotechnology (pharmaceuticals and genetic engineering), medical devices, software (Internet and mobile apps), and hardware (semiconductors, set-top boxes, smartphones, solar wafers and light-emitting diodes/LED/OLED). His legal experience includes second chairing international arbitration cases, litigating in the areas of copyrights and trademarks, preparing and prosecuting U.S. electrical engineering patent applications, drafting patentability, freedom-to-operate and non-infringement opinions, as well as patent interference in the area of biotechnology. He also represents clients...

Andrew is a partner in JMBM’s Litigation department and a member of the Appellate, Patent Litigation, and Professional Liability Defense Groups. He has litigated a wide array of subject matters, including legal and actuarial malpractice cases, breach of fiduciary duty and related business disputes, patent, copyright and trademark infringement cases, and commercial lease and contract actions. Andrew also regularly advises local California businesses on corporate governance and management issues. His clients span a variety of industries, from international law firms and national restaurant chains to major record labels and commercial landlords.

Andrew is actively involved in every part of the litigation...

Nate is a registered patent attorney with a full-service intellectual property law practice. His focus is on helping inventors, entrepreneurs, and businesses identify and protect their intellectual property. Nate has extensive experience with patent applications, trademark applications, copyright registration, and enforcing his client’s intellectual property rights.

In addition to serving his clients, Nate stays active in the legal community. He has served four years on the Board of Directors for the Orange County Intellectual Property Law Association (OCIPLA) where he is currently the Secretary. Nate is also a Member of the Board of Directors for Chapman University’s Fowler School of Law’s...

Donn K. Harms is a Registered Patent Attorney also handling business and corporate law matters since 1988, with heavy emphasis on trademarks, copyrights, patents, and licensing matters. Mr. Harms has served as an Adjunct Professor for Patent Law and Trademark Law at the University of California at San Diego. Mr. Harms has served as a Professor of Patent Law and Trademark Law at the University of California at San Diego, and has offices in Bend, Oregon, and in Del Mar, California. Prior to practicing law, Mr. Harms owned and operated a small business with 50 employees for over 15 years....

Recent Accolades:
Featured in the Los Angeles Business Journal, Most Influential Lawyers of 2014.
Named as one of the 2015 Trusted Advisors for the San Fernando Valley Business Journal.
Awarded as 2016 Top Attorneys of Southern California by Los Angeles Magazine.
Awarded 2016 Global Law Experts Award for Business Start-Up IP Law Firm in California.
Named 2016 Intellectual Property Practitioner of the Year by Acquisition International.
Named 2017 America’s Most Honored Professional by The American Registry.
Awarded multiple years of Super Lawyer recognition.
Named 2019 Best Law Firms by Best Lawyers of U.S. News and World Report.
Named 2019 Business Start-Up IP Law Firm of the Year in California...

Milord A. Keshishian practices law with a focus on intellectual property rights. His training and experience includes the areas of patent, trademark, copyright, unfair competition, trade secret, and franchise law. He has extensive experience in litigating these matters, as well as counseling clients on transactions surrounding technology acquisitions and other business ventures. Milord is experienced in pursuing intellectual property protection in the United States and internationally. He also serves as an expert witness in patent litigation matters handled by prominent law firms. His interest in protecting intellectual property rights developed out of the respect he gained for the innovative thinking found in...

Joseph Mandour is the managing partner of Mandour & Associates, APC. He received his Juris Doctorate in 1995. Since then, he has been providing legal representation to businesses facing intellectual property issues.

Robert L. (Bob) Taylor was born near Philadelphia, Pennsylvania, and attended high school in Berkeley, California. Bob graduated Phi Beta Kappa and with high honors from the University of California at Berkeley in 1982 with an A.B. degree in Economics. Bob graduated from the Boalt Hall School of Law (UC Berkeley) in 1985, where he was a member of the California Law Review. In 1985, he was admitted to practice in the State of California and before the Federal District Court, Northern District of California, and the U.S. Court of Appeals, Ninth Circuit. He has since also been admitted...

Susan Long Crockett is a principal in the firm of Crockett & Crockett. Working with high technology clients, Susan prosecutes patent applications in diverse areas of technology. She counsels on trademark and patent management, infringement and validity issues in addition to litigation. She also has broad experience in international intellectual property law.

Kregg is a patent attorney in Los Angeles, focusing on patent prosecution of mechanical and medical devices, and related technologies. Large firm experience at affordable prices.

Kregg’s technical experience is among the best you will find. He spent years as a combustion devices design engineer on NASA’s Space Shuttle Program before earning his law degree from one of the top law schools in the country.

Kregg has helped clients of all sizes, from solo inventors and startups to Fortune 500 companies protect their innovations.

Call today for a complementary consultation to discuss your patent needs and how...

I am a civil attorney specializing in Intellectual Property prosecution and enforcement. I have substantial experience in securing patent, trademark and copyright protection for my clients. I also have over ten years experience in litigating intellectual property disputes for both plaintiffs and defendants, in all levels of state and Federal courts.

James H. (Jim) Gulseth was born and attended high school in Devils Lake, North Dakota and graduated with an A.B. degree from the University of California at Berkeley. Jim earned his JD degree at the University of California Hastings School of Law in San Francisco and is admitted to practice in the State of California and before the Federal District Court, Northern District of California, and the U.S. Court of Appeals, Ninth Circuit. He is a member of the Corporations, Business Transactions, Securities and Tax and Intellectual Property Sections of the State Bar of California. Jim’s reported cases include...

I am a registered patent attorney licensed in Texas and California and have been practicing for fifteen years. Our firm is unique in that we handle not only acquiring patents, trademarks and copyrights, but we are also comfortable litigating those rights as trial lawyers. The lawyers at our firm have a diverse array of technical backgrounds to serve wide ranging industries.

Grant’s Law Firm, is a business oriented law firm composed of experienced attorneys delivering aggressive and innovative services in a cost-effective manner. While we offer the kind of work product, expected from a large law firm, we retain small firm efficiency and focus on personalized service to individuals, businesses and business owners throughout Orange County, Riverside County, and Los Angeles County, California.

Our business lawyers craft creative and efficient solutions to various legal problems, no matter how complex the issues may be. In doing so, we seek to build long term relationships with our clients, so that we can contribute to...

Joe Mellema's practice focuses on litigation in federal and state courts, including the protection and enforcement of intellectual property rights, and business and commercial disputes. He has handled patent, trademark, copyright, trade secret, unfair business practices, antitrust, and business and commercial lawsuits in all phases of litigation and arbitration.

Joe is well-versed in patent and trademark enforcement, preparation and prosecution, as well as trademark enforcement and opposition proceedings before the Trademark Trial and Appeal Board of the United States Patent & Trademark Office. He has considerable experience litigating patents in a variety of technical fields, including optical devices and components, computer...

Mr. Hyman provides patent services, licensing assistance, strategic counseling, and intellectual property portfolio reviews to biotechnology companies and academic institutions. Clients receive expertise and insight honed as a partner in a large firm, and client service informed by in-house experience, but without the fees associated with large firm overhead.

Dylan C. Dang is an intellectual property attorney who has extensive experience in patent and trademark litigation at both trial and appellate levels.

For over 13 years, I have helped clients in diverse technology areas achieve success in IP and business litigation, patents, trademarks and licensing. Having been at two leading large law firms (Greenberg Trauig LLP, AMLAW 10 and Sheppard Mullin LLP, AMLAW 100) for 10+ years, I have the experience and skills to provide our client's with the very best in quality and service. I have successfully settled numerous IP and business litigation cases, prosecuted hundreds of patent and trademark applications to issuance/registration and successfully negotiated complicated licensing and pre-litigation matters for small startups to Fortune 500 companies....

Michael Fabiano's practice at Fabiano Law Firm, P.C. focuses on patent litigation, patent prosecution and licensing, business litigation, intellectual property licensing and client counseling, as well as trademark and trade secret protection and litigation. He also has substantial experience in intellectual property counseling and due diligence. He has been named one of "San Diego's Top Attorneys" by San Diego Metro magazine. He is registered to practice before the United States Patent and Trademark Office. He is admitted to practice in the U.S. Court of Appeals, Federal Circuit, the U.S. Court of Appeals, Ninth Circuit, and all state and federal courts in...

Hi, I'm Judd! I am an experienced patent and trademark attorney based in California, serving clients both domestically and internationally. With offices located in both Northern and Southern California, I am able to provide clients throughout the world with personalized and effective legal solutions. My areas of expertise include patent prosecution, litigation, trademark registration, and disputes. I am committed to staying up-to-date with the latest developments in patent and trademark law and am an active member of the National Association of Patent Practitioners and the Los Angeles Intellectual Property Law Association. I take pride in helping clients protect their intellectual property assets...

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...

A. Justin Lum continues his father’s (Albert C. Lum) legacy in helping new business owners (entrepreneurs, startups) with all their legal matters, from creating a company to finding real estate to registering DBAs, copyrights, trademarks, and patents. As a business attorney, A. Justin Lum can also assist with corporate and transactional matters, litigation, and employment immigration (e.g., EB, H1).

Admitted:
• California State Bar 1993
• United States District Court
• Central District of California United States Court of Appeals
• Ninth Circuit United States Court of Appeals
• Tenth Circuit Registered
• United States Patent Bar, 1997

James Yang earned his Bachelor of Science in Mechanical Engineering from California State Polytechnic University in Pomona, a school recognized for its engineering program. Prior to entering the legal field, James Yang worked extensively in different areas of mechanical engineering. For several years, James managed a folding carton business where he acquired hands-on experience with automated machinery, printing equipment, die cutting machines and all aspects of paper box manufacturing. James also worked as a mechanical engineer for Avibank Manufacturing, a supplier of custom fasteners for the aerospace industry where he designed products for companies such as Boeing. Shortly before entering...

Strategic intellectual property counseling including patents, trademarks, IP business transactions, design-around strategies, and pre-litigation counseling.

The proprietor, Mr. Alexis Saenz is a patent attorney with nearly a decade of experience. He has prepared hundreds of patent applications and responses to the USPTO. He has an upfront approach guiding clients early on in what to expect out of the patent process.

His emphasis of practice is with start-up ventures and mid-size companies in the growth stage. Having work experience with a start-up company has provided him with keen insights on the successes and pitfalls growing companies encounter. Alexis is active in start-up communities and local chambers of commerce often lending an ear to those businesses needing a...

Registered U.S. patent attorney David M. Kleiman has been helping entrepreneurs and businesses succeed with intellectual property law since 1998. He has had many years of experience working on big patent litigation for large multi-national corporate clients, defending businesses against wrongful allegations of infringement, and obtaining intellectual property protection for client innovations and creations. Attorney of record or lead counsel in more than a dozen lawsuits. Has worked effectively as part of a team to help clients obtain hundreds of millions of dollars in civil litigation settlements. 1st chair criminal jury trial experience. Substantial experience...

I am an associate at Innovation Capital Law Group, where I practice intellectual property law, corporate and securities law. Prior to joining the firm, I worked for Technology Capital Law Group, a law firm specializing in representing technology companies. I specialize in patent, trademark, and copyright prosecution, intellectual property litigation, and licensing transactions. I am admitted to practice in the State of California and United States District Court Central District, Northern District, and Southern District of California. I am also a registered patent attorney with the United States Patent and Trademarks Office. I was a chemical engineer before...

As an associate in JMBM's Intellectual Property practice, Jon serves clients in all facets of intellectual property law, including: trademark, copyrights, patents, and trade secrets. He has experience in intellectual property litigation, prosecution, and transactions. Before becoming a lawyer, Jon received a B.S. in Mechanical Engineering, with an emphasis in Materials Science. His technical experience includes medical and therapeutic devices, automobile hardware and software, video game hardware and software, artificial intelligence, aircrafts, semiconductors, communication systems, sports equipment, surface coatings, industrial connectors, cryogenics, portable electronic devices, home goods, apparel, and other consumer products.

I am an intellectual property specialist with 20 years in practice. My primary practice is IP prosecution and client counseling, specifically regarding patents. I have worked with clients to obtain patent protection on ideas ranging from high-technology military electronics, networks, internet business methods, digital and analog electronics, communication systems, IC manufacture and design, medical devices, microturbines, air bearings, animation techniques, and digital cinema to pre-fabricated wall sections for building construction, fishing lures and musical instruments. My broad technical experience coupled with my business experience provides clients a valuable perspective for identifying, capturing, protecting and exploiting their intellectual...

I was born in Brazil but grew up in Riverside after my family immigrated to the United States. Growing up I loved playing football, basketball, soccer, and baseball with my brothers and the kids in the neighborhood but I was always fascinated by my oldest brother's interest in science. So after graduating from high school in Riverside I majored in Electrical Engineering at California Polytechnic University where I obtained both a Bachelor and Master degree in Electrical Engineering. As an engineer I have worked for a number of different technology companies ranging from large aerospace...

John (Hyungsoo) Ahn is a Registered USPTO Patent Attorney who loves ingenuity. He hopes to advance innovation by helping creative entrepreneurs and businesses thrive in their respective fields.

John received his B.S. in Biology from the University of California, Riverside and his law degree from Pepperdine University School of Law. John has experience drafting patent applications for laser systems and various military devices during his time working at the Naval Surface Warfare Center. He also has experience responding to office actions for various trademark applications and receiving favorable outcomes.

John is registered to practice in the state of California and before the...

The firm represents individuals and businesses and handles cases on behalf of plaintiffs and defendants involving patents, trademarks, trade dress, trade secrets, copyright, unfair competition, false advertising, defamation, violations of U.S. Customs and other civil litigation in both state and federal courts. As principal of the firm, Craig McLaughlin is an efficient litigator and trial lawyer experienced in intellectual property matters and other civil litigation. The firm is focused on protecting its clients' intellectual property and reputation. A list of accomplishments for clients is available on the firm's website.

Richard is a USPTO Registered Patent Attorney who loves helping creative people realize their dreams. Rich received his BA from Princeton University, then completed his Physics coursework at San Francisco State University. Rich received his J.D. with Honors & Certified in Intellectual Property from the University of Oregon School of Law. Rich has practiced in patent prosecution, patent litigation and military law, having served as an Army JAG Corps Captain stateside and overseas. Many lawyers call themselves "i.p. lawyers," but few are truly Registered with the USPTO, licensed to secure you your patent or ® Trademark. Look...

Glen Nuttall is a seasoned attorney that counsels clients in all aspects of intellectual property law. He helps clients develop and implement strategies that use patents, trademarks and other intellectual property to add value to their company. He also helps clients avoid or overcome the intellectual property of others.

Glen’s skills and experience include helping engineers identify and preserve inventions, preparing and prosecuting patents and trademarks in the U.S. and foreign countries, developing and maintaining complex patent and trademark portfolios, conducting Patent Office proceedings, such as Inter Partes Reviews, to challenge or defend patent validity, performing infringement and invalidity...