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.
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.
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.
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.