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River Sonic Solutions

Expert Witnessing and Technical Consulting in imaging, signal processing and electronics

Dr. Chris Daft Expert Witness

Dr. Chris Daft is an award winning, Oxford Educated scientist. He is an expert witness and consultant whose areas of expertise include signal and image processing, machine learning and medical imaging. Dr. Daft has extensive Intellectual Property experience including patent development, licensing, and serving as an expert witness who has testified at deposition and trial. He is a serial inventor who holds 24 U.S. Patents with more pending. Dr. Daft holds a BA and MA in Physics from Oxford, and a Doctorate from Oxford in Materials Science. The author may be contacted at:
chris.daft@riversonicsolutions.com
+1 (415) 800-3734 office +1 (408) 806 7525 cell
River Sonic Solutions LLC 2443 Fillmore St #380-4039, San Francisco, CA 94115

128 years of computing power: implications for IP lawyers

By Dr. Chris Daft

Moore's Law

The fundamental graph of technology The graph’s horizontal axis is linear in years, while its vertical axis is exponential. That is, each annotation represents a factor of 100 in improvement. If the bottom of the axis represented a single grain of sand, the top of the axis would be the number of grains of sand […]

An IP Lawyer’s Guide to Recent AI Developments

By Dr. Chris Daft

As an AI expert witness and consultant, I’ve had a front-row seat to the remarkable evolution of artificial intelligence. As we approach the end of 2024, several developments justify attention from legal professionals working in intellectual property and technology law. The Turing Test: A Legal Benchmark? In 1950, Alan Turing proposed the ‘Imitation Game’ – […]

What level of experience is required for expert testimony?

By Dr. Chris Daft

Wassermann, Eric. Transcranial Brain Stimulation. Behavioral Neurology Unit. National Institute of Neurological Disorders and Stroke

Transcranial Magnetic Stimulation (TMS) is a non-drug treatment for illnesses like depression which is gaining clinical adoption after FDA clearance of new protocols such as SAINT. Brain Frequency LLC and Wave Neuroscience Inc. both offer types of personalized TMS involving a pre-procedure electroencephalogram (EEG) assessment. In recent Western District of Texas patent litigation between these […]

Can Patent Applications Filed Before but Published After a Patent’s Critical Date Be Used in IPR Proceedings?

By Dr. Chris Daft

Patent Statute

In a recent inter partes review (IPR) of an alternating current light emitting diode patent, a pivotal reference was filed with the USPTO before the patent’s critical date, yet it was published afterward. Despite this, the PTAB ruled the challenged claims unpatentable based in part on that reference. This case has garnered amicus briefs from […]

Transducer Technology and Related Litigation

By Dr. Chris Daft

Silicon Transducer

Introduction In the ever-evolving landscape of medical device technology, transducers play a pivotal role in bridging the gap between electronic signals and the physical world. In my work as an expert witness specializing in medical devices, signal processing, semiconductors, and MEMS, I’ve observed the increasing importance of transducers in both technological advancements and patent litigation. […]

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Dr. Chris Daft

Dr Chris Daft

Dr. Chris Daft is an award winning, Oxford Educated scientist who provides technical consulting and expert witnessing services.
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