Optics Expert Witnesses

Fallbrook, California

Medical Devices, Intellectual Property - optics, electronics, software, medical device, diagnostics, medtech, biotech, optical networks, physics, optical materials, intellectual property

My company provides engineering consulting and product development services across the spectrum of entrepreneurs, small businesses, and large firms, as well as expert services. We are a network of skilled professionals with backgrounds including all engineering disciplines, science, manufacturing, regulatory affairs, and a wide range of others. We specialize in projects involving optics, electronics, software, and various aspects of materials physics, but have made happy customers in a broad range of endeavors. As of 2025, I have served as an expert on more than 30 matters, have been deposed over 12 times, and have testified in District and Superior Court, as well as the ITC. My primary focus has been in intellectual property, but I have experience in personal injury and product liability cases as well. I was also an adjunct professor of Applied Physics at Cal State San Marcos for over 16 years, teaching electronics, optics, embedded programming, and physics. I have worked i...

Media, Pennsylvania

Medical Devices, Biomedical Engineering - Mechanical Engineering, R&D, Product Development, Clinical diagnostics, Blood collection, Biospecimens, Point of care testing, Microfluidics, Spectroscopy, Cell therapy, Intellectual Property, Microscopy, Physics, Biomedical sensing, Optics, Imaging, Mathematics, Laboratories & Testing, Lasers

Dr. Fletcher is Founder and Principal Consultant at RnDDx Solutions LLC, a consulting firm focused on industrial biomedical and mechanical engineering, and research and product development, in medical devices, diagnostics, optical devices, point-of-care blood sample testing, and on expert witness patent litigation, including subject matter expertise in medical device mechanical engineering, and subject matter expertise in medical devices for blood collection and blood sample processing for diagnostics and therapeutics. He has particular expertise in mechanical engineering design and development of non-invasive and minimally invasive biomedical diagnostics systems, blood collection and stabilization, blood separation, and blood and cell preparation for both diagnostic and therapeutic applications, including the development of sample collection devices, needles, and lancets. He is co-inventor on 23 patents for devices and methods in blood collection and processing. Yale educated Ph...

Falls Church, Virginia

Electrical Engineering, Photography & Imaging - Signal Processing, Image Processing, Video Processing, Optics, Imaging, Cameras, Sensors, Medical Imaging, Compression, Image Quality, Image Reconstruction, Image and Video Analytics, Magnetic Resonance Imaging (MRI), Patent Disputes, Patent Infringement, Deep Fake Detection, DeepFakes

Dr. Dagher’s Expert Witness experience spans the entire field of Imaging Systems, from the design of Optical & Sensor Systems to the research and development of Image and Video Processing and Analysis Algorithms. Dr Dagher has 5 year experience in depositions, writing reports & rebuttals, valuations, patents and intellectual property. Dr. Dagher has testified 5 times on topics ranging from Inter-Pares Patent disputes, patent infringement, personal injury and class-action lawsuits. Career highlights include: — More than 25 years of Research and Development experience in Imaging Science. Dr. Dagher is currently Director of Research & Development at a startup company in the DC area. — Formal education & decades of hands-on experience in Signal and Image Processing such as Image and Video Compression, Computer Vision, Image Enhancement, Image forensics, Image Analysis, Machine Vision, Image Reconstruction, Image Quality, Inverse Problems, Deep Fake Generation and Deep Fake Detecti...