NY Bar
For more than thirty years, William (Bill) H. Dippert has focused on helping individual inventors, universities, and pharmaceutical and medical device companies protect and enforce their domestic and international intellectual property rights. In addition, he has advised venture capitalists who invest in medical technology companies. Bill’s medical device, surgical device, and pharmaceutical clients span a broad array of technologies, including angioplasty, atherectomy, stents and stent delivery, endovascular devices, arthroscopic devices and treatments, ablation catheter systems, minimally invasive surgical equipment, drug delivery systems, and treatment of breast cancer, prostate cancer, and BPH.
Further, Bill has extensive experience in investor due diligence, portfolio evaluation, licensing matters, trademarks, copyrights, and the preparation of patent validity and infringement opinions. He also counsels clients regarding in-house intellectual property protection programs.
IN Bar
Kerry P. Sisselman was born in Westbury, New York, USA. She has lived in Florida since 2001 and makes her home in Hollywood. In 1989, Ms. Sisselman received a Bachelor of Science Degree in Electrical Engineering from the University of Illinois at Urbana/Champaign. In 1992, Ms. Sisselman received a Juris Doctorate in Law from Indiana University at Bloomington (cum laude). Ms. Sisselman is a member of the Indiana Bar and is registered to practice before the United States Patent and Trademark Office.
Ms. Sisselman has a varied range of experience, having written and prosecuted patent applications relating to inventions in such diverse areas as computer hardware and software, medical devices, oil rigs, semiconductor device fabrication, consumer electronics products, motor vehicle control systems and cameras. Prior to coming to Lerner Greenberg Stemer, Ms. Sisselman was in-house patent counsel for Concord Camera Corp. and was a partner at an intellectual property law firm in the Midwest. During college, Ms. Sisselman was privileged to have the opportunity to study briefly at the Xian Jiaotong University in Xian, China, and had summer internships at Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois and the Center for Compound Semiconductor Electronics at the University of Illinois.
Reg. Pat. Agent
Alfred Dassler is a registered U.S. patent agent in the United States Patent and Trademark Office and has worked at Lerner Greenberg Stemer LLP since 2001. Al specializes in the preparation and prosecution of patents. His areas of expertise are in metal forming, tool and die design, and thermoplastic molding. He is fluent in German. Al has a wide range of patent prosecution experience, including patent applications in the areas of printing equipment, material handling equipment, nuclear power, automobile components, medical devices, marine equipment, sporting equipment, tools, consumer goods, machine tooling, pharmaceutical packaging, railway equipment, pharmaceutical labeling, and household appliances. Al also has a strong track record in taking over patent applications for clients that were unsuccessful with prior representation.
Mr. Dassler was born in Barrington, Illinois. In 1991 he earned a Bachelor’s Degree in Mechanical Engineering Technology from the University of Dayton, Dayton, OH. After receiving his degree, Al spent six years as a product and tooling design engineer in the metal forming industry. As a design engineer Al worked on consumer packaging such as beverage and other food containers. Subsequently, Al was employed for three years as a production engineer in the metal forming industry, where he was responsible for improving production, efficiency, and quality at manufacturing facilities in Kentucky, California, and England.
In addition, he served as a senior project manager for three years in the field of thermoplastic injection molding, receiving professional accolades for innovative products produced by the projects he managed.
FL Bar
Jacob Clayton Stemerwas born and raised in south Florida. He lives with his wife, Anna, and daughter, Lily, in Fort Lauderdale. Mr. Stemer holds undergraduate degrees in Physics (B.S. Florida Atlantic University) and History (B.A. University of Central Florida). He graduated from the University of Miami School of Law in 2021 (J.D., cum laude) where he was a staff editor for the University of Miami Law Review.
Mr. Stemer was admitted to the Florida Bar in 2021 and is registered to practice before the United States Patent and Trademark Office. From 2016 until becoming an attorney, Jake practiced as a registered patent agent where he gained experience writing and prosecuting patent applications in various technical areas such as electronics, home appliances, tire treads, automotive components, and more. Jake is conversational in German having grown up in a bilingual household.
TN Bar
Mr. Weichselbaum has over twenty years of experience preparing and prosecuting patent applications in complex computer, electrical, biomedical, and mechanical engineering technologies.
His previous legal employment includes positions as a Technical Advisor and as an Attorney performing patent prosecution at a law firm in the Southeastern United States. His previous engineering employment includes working in the defense industry as an Electrical Engineer.
Mr. Weichselbaum earned the degree of Bachelor of Science in Electrical Engineering with Honors from the University of Florida and was named to the Dean’s list several times. Mr. Weichselbaum earned the degree of Juris Doctorate from the University of Memphis.
F. Donald Paris (Don) retired in 2002 from the Law Department of ExxonMobil Corporation, where he specialized in intellectual property law with emphasis on the protection of intellectual property (IP) vis a vis patents, copyrights, trademarks, and trade secrets, technology transfer through licensing and related agreements, and acquisition of technology through research and development agreements and licensing. Don counseled and supported clients in all aspects of intellectual property including protecting and managing intellectual and proprietary assets, establishing IP programs, filing and prosecuting U.S. and non-U.S. patent applications, drafting and negotiating worldwide agreements for licensing technology and patent rights and for research and development and joint venture projects, and license, guarantee, engineering, secrecy, consulting, and other agreements related to licensing and acquisition of proprietary technology. He also helped develop IP guidelines and policies for corporate management, and counseled clients in areas of U.S. Export Control and Foreign Corrupt Practice Act. Mr. Paris’ responsibilities were geographically diverse, including the United States, Canada, Central and South America, United Kingdom, Europe, Far East, Australia, India, Japan, South Korea, Philippines, Taiwan, Russia, and China.
Don received a Bachelor of Science in Electrical Engineering from New Jersey Institute of Technology (NJIT) in 1962 and a Juris Doctor from Georgetown University Law Center in 1966. He also attended Columbia University Parker School of International Law. At NJIT, he was a member of Eta Kappa Nu, the electrical engineering honor society, and was on the Dean’s List. Mr. Paris was a member of Phi Alpha Delta legal fraternity.
Before joining ExxonMobil, Mr. Paris was employed as a Patent Attorney with The Singer Company and was a Patent Examiner with the United States Patent Office from 1962 to 1966.
Mr. Paris is a Registered U.S. Patent Attorney. Professionally, he is a member of the State Bars of New York, New Jersey, and the District of Columbia. He also is a member of the Licensing Executives Society, and past member of the Intellectual Property Section of the American Bar Association and the New Jersey Intellectual Property Law Association.
Don was very active in community life when he resided in New Jersey for more than 35 years. He was a member, including President and Vice President, of the local and regional school boards of education for 18 years and on various township committees and boards, and an active participant and coach in youth programs. Mr. Paris was selected as Citizen of the Year by the local Clark B’nai B’rith Chapter and participated in Leadership New Jersey.
Don and his wife, Maxine, now reside in Delray Beach, Florida, and spend part of their time at Beach Haven, Long Beach Island, New Jersey. They have three sons, Drs. Scot, Jay and Brian and six grandchildren.
David W. Barman holds undergraduate degrees in Chemistry and Music from the University of North Carolina at Chapel Hill, B.S. 1990 and was a member of the inaugural class at the Florida International University College of Law in Miami Florida, JD., 2005. David earned Dean’s List honors at each of UNC and FIU. He is a member of the Florida Bar and is admitted to practice in Florida, U.S. Court of Appeals for the Federal Circuit, the Supreme Court of the United States, U.S. District Court for the Southern District of Florida, U.S. District Court for the Middle District of Florida, and the United States Patent and Trademark Office.
Mr. Barman’s scientific experience includes, medical, personal care chemistry, and pharmaceutical research. He has patented inventions in these and many other areas. Some of his current clients have patented mechanical, computer, medical, and sports related articles just to name a few. His clients also include Patent Attorneys who are in need of a patent professional in the prosecution of chemical and pharmaceutical patents.
David is not only a scientist, but an inventor as well. This rare combination of skills: scientist, inventor, and patent professional, allows Mr. Barman to assist numerous clients in many different fields.
David W. Barman is also professor at FIU in Miami where he teaches Business Law in the College of Business.
David is also an accomplished musician. He attended UNC Chapel Hill on a music scholarship, toured Europe with the Spirit of America Marching Band, and toured the United States as a member of the Garfield Cadets Drum and Bugle Corps.
Ralph E. Locher was born in Mount Pleasant, Pennsylvania, USA. He has lived in Florida since 1996 and makes his home in Cooper City together with his wife Shelly and their children Tonya, Kristie, and Nicholas. Mr. Locher received a Bachelor of Science Degree in Business Management from Northern Illinois University, 1983, B.S. degree in Electrical Engineering from Southern Illinois University – Carbondale in 1986, and a Juris Doctorate in Law from St. Louis University (cum laude 1994).
Mr. Locher is a member of the Florida Bar, the Illinois Bar, the Missouri Bar, and is registered to practice before the U.S. Patent and Trademark Office. Mr. Locher was one of Florida’s first board certified intellectual property law attorneys. Mr. Locher is a member of the American Bar Association, Section of Intellectual Property Law Association of Florida and has specialized in only intellectual property matters since 1996.
Mr. Locher specializes in patents, trademarks, patent interference, patent appeals, and international patent prosecution. Mr. Locher is conversational in German. His primary areas of expertise are in engineering, with an emphasis on discrete components, circuits, integrated circuits and semi-conductor devices; thermodynamic processes, including fluid flow, power plant processes, heat exchange, and energy conversion; exhaust gas purification (filtering, catalytic conversion); nuclear technology, coatings; electromagnetic devices (sensors, actuators, motors), digital and analog signal processing, communications (telecommunications apparatus and signal processing); computer engineering, including software, hardware, and process modeling; digital logic circuitry, digital/analog interfaces; high temperature superconductivity, optics systems; and automotive technology, including exhaust systems and exhaust gas purification, control systems, transmission and engine control, safety systems, automotive electronics; and business method patents.
Before venturing into patent law Mr. Locher was an aerospace engineer at Boeing/McDonnell Douglas Corporation for nine years where he worked on electronic systems for F-15 and F-18 fighter aircraft. In addition, Mr. Locher has two years general management experience with Pepsico Corporation, Pizza Hut division.
Werner H. Stemer grew up in the Montafon Valley in Vorarlberg, Austria. He has lived in Florida since 1984 and makes his home in Fort Lauderdale. Mr. Stemer holds degrees from the University of Innsbruck, Austria (M.A.), from Florida International University (B.S., physics), from Kennedy Western University (Ph.D.), and from Nova Southeastern University (J.D., magna cum laude).
Mr. Stemer has more than thirty years experience in patent law and he is board certified as an expert in intellectual property law (Florida Bar Board of Legal Specialization). His primary expertise lies in the prosecution of patents and trademarks, patent appeals, and international (PCT) patent applications. A substantial amount of his time is spent on patent reexaminations, clearance opinions, and infringement opinions. Mr. Stemer’s primary technical expertise lies in general and applied physics, in physical chemistry, mechanical and electrical engineering, computer engineering, and software applications.
Werner Stemer has published several articles and commentaries in English and in German, and he has lectured on a wide range of corresponding topics in Europe and in the United States. His publications include:
• Patentschutz in wichtigen Exportmärkten, Apfelthaler, et al.
(publ.), Facultas Verlag, Vienna, Austria 2008.
• Das Wirtschaftsrecht der USA für Unternehmensgründer,
Apfelthaler, Stemer, et al., Verlag Österreich, Vienna, Austria 2003.
• Not With a Bang, but a Whimper: The Long-Awaited Festo Decision
– Patent Café, http://www.patentcafe.com
• The Doctrine of Equivalents after Hilton Davis and Markman, and a Proposal for Further Clarification,
22 Nova L. Rev. 783 (1998).
• Protection of Intellectual Property through Patents, Trademarks, and Copyright, Dissertation,
Kennedy Western University Press (1997).
• U.S. Warenzeichen für österreichische Anmelder, Internatiale Wirtschaft
(published by the Austrian Chamber of Commerce.
Werner H. Stemer also holds the position of the Austrian Honorary Consul General, head of mission of the Austrian Consulate Miami. For information, please visit the website of the Austrian Consulate.
Laurence A. Greenberg has been the Managing Partner of the Lerner Greenberg Stemer LLP law firm since 1990. His professional efforts are mainly directed toward advising clients, educating colleagues and practicing in the areas of Intellectual Property prosecution, as well as litigation and dispute resolution.
Mr. Greenberg was born in Los Angeles, lived in New York for many years and relocated to Florida in 1981. He graduated from Brooklyn College in 1971 and, after several years in business, graduated from Pace University School of Law in 1981. He and his wife Leslie have lived in Hollywood, Florida for many years where they have raised their four children.
Mr. Greenberg was registered to practice before the United States Patent and Trademark Office as a Patent Agent in 1979 and as an Attorney in 1982. He was admitted to the Florida Bar in 1982 and to the United States Court of Appeals for the Federal Circuit (CAFC) in 1983. He is also a member of the American Bar Association and the New York and Florida Intellectual Property Law Associations.
Although Mr. Greenberg’s educational background is in Physics, he has had years of experience in the fields of Electrical, Mechanical and Chemical patent prosecution in general, and more specifically dealing with semi-conductor components, circuits, computer hardware and software, communications, automotive electronics and devices, power generation, environmental engineering including exhaust gas purification, printing, textile machinery, postage equipment, medical equipment, household appliances, optics, thermodynamics, electromechanical and electrochemical devices, material science as well as carbon, graphite and rubber products.
Mr. Greenberg has been a lecturer in the field of Intellectual Property Law, with particular emphasis on the Patent Cooperation Treaty and in explaining the nuances and changes in U.S. Patent and Trademark law and practice to attorneys, inventors and business people in the United States, and to Intellectual Property practitioners abroad. He has participated in numerous state and federal suits and appeals before government bodies and agencies as well as District Courts and the CAFC.
Mr. Greenberg is AV® Peer Review Rated and is Board Certified in Intellectual Property Law.
Mr. Greenberg is fluent in German and is involved in local politics, as well as charitable and community organizations.
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