Polymers Expert Witnesses: 9

Dr. Rolf Biernath, PhD, Chemical Engineering, University of California, Berkeley, and BChE, Georgia Institute of Technology) has over 35 years of experience in the Chemical Industry with a concentration on Polymer Science and Engineering and Material Science Fracture Mechanics. He worked in Materials and Processes at 3M for 31 years in senior technical roles developing materials, processes, and systems. His 58 US patents span a broad range of scientific and engineering disciplines.

Litigation Support - Dr. Biernath is a Patent & Civil Liability Expert Witness having worked with in-house and outside attorneys in prior art searches. He's drafted claims and strategized claims in a variety of fields. He has written Expert Reports for Civil Liability, including material failure analysis, computer simulation, and manufacturing assessment. He is known for his ability to explain complex technical problems simply.

Areas of Expertise:

Background Experience - Dr. Biernath has 58 Issued US Patents on new products and processes, including:

• Industrial Adhesives and Tapes – materials selection, development, automation, and tape application processes
• Electronic Materials – epoxy thermoset adhesives & application process, high speed electronic connectors
• Electronic Displays and optical display films, outdoor digital displays
• Microreplication and textured adhesives and processes, microfluidics, e-Paper
• Signage – retroreflective signage, license plate recognition, ADAS, and Human Invisible, Machine-Readable Coding System
• IoT and IIoT / Automatic and predictive selection and replacement

Dr. Biernath has expertise in stresses in planar systems due to a range of causes including, thermal expansion mismatch, humidity and solvent uptake or loss, and cure shrinkage. He understands assembly processes for tapes and adhesives including interpreting Technical Data Sheets, Application Data Sheets, developing test methods, and selecting materials.

View Biernath Consulting, Inc.'s Business Consultant Profile.

Dr. David A. Rockstraw, PE, is a distinguished figure in the fields of Chemical Engineering and Intellectual Property, with an impressive blend of academic and professional credentials. He has over 30 of years of experience in chemical processing and phenomena in industry, national labs, academia, and private consulting.

Dr. Rockstraw is the former Robert Davis Distinguished Professor and Academic Department Head of Chemical Engineering, Interim Academic Department Head of Mechanical & Aerospace Engineering and Creator and Director of Brewery Engineering at New Mexico State University, with over a decade of experience in the chemical process industry and national labs. 

Litigation Support - Dr. Rockstraw has supported NSF grants as a co-PI and consultant, testified in trials, arbitrations, and depositions on dozens of occasions, and has the experience of over 80 expert witness engagements and over 30 technical consultant engagements, the majority involving patent infringement, trade secret theft, and patent validity.  Work on these cases has frequently required Rockstraw to perform laboratory research or direct full-scale plant tests to collect the evidence needed to support a client’s position. He is a clear communicator, skilled educator, having experience in a wide range of chemical manufacture processes. Dr. Rockstraw is licensed in TX, NM, and CA.

Areas of Expertise:

Arun Kumar, Ph.D. has 45 years of experience in Metallurgy, Materials Science and Failure Analysis of Metallic and Non-Metallic Materials at Rockwell International, Hughes Aircraft Company and EAG Laboratories. He manages and supervises approximately 10 engineers and technicians performing a variety of analytical services and failure analysis. Dr. Kumar provides metallurgical consultation, performs failure analysis and serves as an expert witness in product liability trials involving materials failures. He has extensive experience in metallurgical failure analysis of aircraft, helicopter, automobile and motorcycle components, machineries, medical implants, machine tools, household appliances and wildfire investigations involving utilities.

Engel Metallurgical LTD engineers and metallurgists offer laboratory testing services to determine Material Performance and Material Performance Expectation. All tests are performed according to government and/or applicable industrial standards, including ASTM, military, and other specifications.

Engel Metallurgical clients include attorneys, insurance company representatives and members of a broad range of industries, including chemical, agricultural, aviation, power generation, construction, transportation and manufacturing.

Litigation Support - Attorneys requiring reliable information rely on Engel Metallurgical. Les Engel and his team of specialists sort through intricate details of structural and material failures, accidents, manufacturing defects and other unexpected incidents that lead to lawsuits, with involvement from initial discovery through court appearances, if necessary. 

In 2003, Engel Metallurgical earned ISO/IEC 17025 accreditation from the American Association for Laboratory Accreditation (A2LA). This accreditation officially recognizes Engel Metallurgical proficiency in quality and details, and helps ensure that its findings will carry more weight in clients’ litigation cases. 

Engel Metallurgical Ltd. is listed with the Minnesota Association For Justice (formerly Minnesota Trial Lawyers Association) as an expert in the field of metallurgy. Their engineers have extensive experience with deposition and trial. Their high ethical and scientific standards complement our expertise in providing sound, unbiased opinions on technical issues, including: Inspection: Equipment and Components Inspected on Site Failure Analysis:

Product Evaluation:

Principal, Lester P. Engel, Jr., PE, is a Metallurgical Engineer with over 40 years of experience leading the company's detailed, quality-focused testing and services. He oversees the company's lab, continually adding new equipment and techniques. 

Mr. Engel also has experience as the chief metallurgist for Brown Boveri Turbomachinery and as a metallurgical engineer for the Aircraft Engine Group of General Electric, where he focused on material selections for hot aircraft and marine gas turbine components. His GE career began in Nuclear Systems Programs, where his work included serving as the principal investigator on three NASA programs. 

Les Engel specializes in materials application, failure analysis, R & D program management, materials and process specifications, engineering standards and procedures, laboratory design and operation, data analysis and personnel, and budget management. He continues to personally perform failure analysis on aircraft and land turbines, generators, boilers, steel products, metals, cements, plastics, and other materials. With high ethical and scientific standards, Les Engel offers sound, unbiased expert analysis and testimony on technical issues. He provides expertise to insurance companies and counsel representing both plaintiff and defendant.

James A. Brusso, PhD, PE, has more than 20 years of experience in processing/properties of materials, materials characterization and behavior, materials specifications, mechanical testing, failure analysis, machining of materials, and laboratory design and operation. He is also Engel Metallurgical's Technical Manager and Quality Manager.

Dr. Brusso brings keen expertise to Engel Metallurgical and its clients, performing failure analysis; rendering expert opinions, giving depositions and testimony for litigation support; providing technical support for materials and process development and improvement; and developing and reviewing various product designs, materials, and process details.

Dr. Brusso has worked with Engel Metallurgical since 2000. Prior to that, he held several positions with The Timken Company in Ohio, where his responsibilities included establishing the company’s machinability testing laboratory, team leader for product development projects, managing the company's application metallurgical laboratory, and providing technical review of internal processing and testing standards to satisfy ISO 9000 / QS 9000 registration. 

View Engel Metallurgical's Consulting Profile.

• Expert Witness
• Analytical Instrumentation Adaptation to Processing Equipment
• Friction Analysis
• Melt Rheology
• Extrusion Equipment: Design & Analysis of Production
• Telecommunication Cables and Insulation
• Power Cables and Testing XLDPE
• All phases of PVC Compounding & Extrusion
• Thermal Stability of Polymers
• Surface Chemistry, Metals & Polymers

Radhakrishnaiah Parachuru is a Textile Engineer with BS, MS and PhD degrees in Textile Engineering & MS degree in Applied Statistics. A multidisciplinary scientist, Dr. Parachuru possesses more than 35 years of teaching, research, and industrial experience in Polymer, Fiber, Textile, Apparel, Carpet, and other related disciplines. 

Serving as the coordinator of industry and public support activities at Georgia Tech, Dr. Parachuru has completed more than 180 applied research projects for the benefit of all segments of the Textile and Allied industries. Projects completed fall in the following categories:

• Product / Process Optimization
• Testing and Evaluation of all Types of Fiber Products Including Woven & Knitted Fabrics, Nonwovens, Carpets, and Technical Textilles
• Flammability Testing of Fabrics, Garments, Carpets and Nonwovens
• Application of Advances in the Materials Field, Especially Advances in Nano and Bio Materials for the Advancement of Fiber Product Industry
• Application of Performance Finishes to Fiber Products Through Wet Treatments
• Technical Trouble Shooting in Spinning, Weaving, Knitting, Dyeing, Printing and Textile Finishing Processes
• Design and Evaluation of New Fiber Products for Application in Medical, Construction, Transportation, etc. Sectors
• Assistance for Product Diversification
• Establishment of Quality Control Facilities and QC Routines

Dr. Parachuru has also conducted basic research in the area of Textile Manufacturing and served as the main advisor of several graduate students at Georgia Tech. He has been an active member of Fiber Society, AATCC, ASTM and TQCA. Dr. Parachuru currently serves as an active member of several AATCC technical committees and also as chairman of the AATCC committee on statistics. His current research interests are in the area of medical and industrial textiles. 

Consultation Services - Dr. Parachuru offers technical consultation to manufacturers, distributors, wholesalers, and retailers. His services cover the entire spectrum of the fiber product industry. 

Litigation Support - Dr. Parachuru has been qualified as a Fiber / Textile Expert after appearing as an expert in more than Forty court cases. His experience covers federal, state, and county courts in multiple states within the United States.

Areas of Expertise:

Meyer R. Rosen, FRSC, FAIC, CPC, CChE, is a leading creative consultant for the Legal Profession and specialty Chemical / Personal Care Industries. He is the Founder & President of Interactive Consulting, Inc. (www.chemicalconsult.com). 

Meyer is a Forensic Litigation expert for both plaintiff and defense in hazardous chemicals, products liability, personal injury, fires and explosions, intellectual property and trade secret cases. He also provides Technical Marketing, New Business Development, Technical Consulting and Professional Editing services internationally to the Specialty Chemical, Personal Care, Cosmetic, Pharmaceutical, Medical Device, and Allied Industries. 

Meyer also has 15 years of experience as a Professor of Fire Technology at Westchester Community College. Mr. Rosen is Editor- in- Chief of Harry’s Cosmeticology, 9th Ed. A 2,600-page trilogy on all aspects of the cosmetic industry (www.harryscosmeticology.com)’ as well as being Emeritus-Editor-in-Chief for EuroCosmetics magazine (Germany) and Editor-in-Chief of the Delivery System Handbook. 

Technology Expertise (Intellectual Property/Chemical Industry): Mr. Rosen provides consultation and litigation support in patent infringement, trade secret issues, and licensing matters. His scientific areas of expertise include, but are not limited to:

• Organosilicones: Surfactants, Emulsions, Foams, Antifoams, Silane Coupling Agents
• Water Soluble Polymers, Poly(ethylene oxide), Polyethylene Glycol, and Poly (acrylamide) and Water Insoluble Polymers
• Colloid and Surface Chemistry: Stability of Dispersions, Wetting & Spreading Phenomena, Suspensions & Emulsions, Clays, Paint & Coatings, Personal Care, Cosmetics
• Flocculating and Coagulating Agents
• Applied Rheology, Rheology Modification of Aqueous & Non-Aqueous Media

Certifications:

• Chartered Chemist and Fellow: Royal Society of Chemistry – London
• Nationally Certified Professional Chemist and Professional Chemical Engineer
• Fire and Explosion Expert (Advanced Training)
• Fellow: American College of Forensic Examiners
• Fellow: American Institute of Chemists
• Diplomate: American Board of Forensic Examiners
• Diplomate: American Board of Forensic Engineering and Technology

View Meyer Rosen's Consulting Profile.

Randal Hill, PhD, Thought leader in chemistry, materials science and intellectual property.  Award winning PhD scientist with 30+ years in applied chemistry.  Visiting Scientist at MIT for 5 years to foster silicone-based nanotechnology projects.  Holder of 69 issued patents.  Author of Silicone Surfactants book and 60 articles.  Served as Patent Science Advisor to grow patent portfolio by 1500%.  Deveoped display for Amazon Kindle.  Readily adapts expertise to new problems.  Served as adunct faculty at Stanford and University of Minnesota.  Organized two international symposia.  Invited speaker at Gordon Conference and four international colloid meetings.  Associate Editor of Journal of Surfactants and Detergents.  Involved member of American Chemical Society, Society of Petroleum Engineers, American Physical Society, and American Oil Chemists Society. Awards  include 3 Dow Corning Technical Achievement Awards, as well as the AOCS Samuel Rosen Award for Surfactant Chemistry.  

Experience includes fire-fighting foams, well fluids, adhesives, silicone defoamers, formulation of household and personal care products, applications of silicone surfactants, silicone-based nanotechnology for soldier protection, development of pigments for electronic displays.

Background Experience - Dr. Hill began his career at a major detergent company followed by developing sugar-based surfactants. He went on to spend 20 years with Dow Corning developing personal care applications for silicones, leading the pigment science group at E Ink developing the next generation of color electrophoretic ink displays, and leading the Formulation Development group at Flotek to expand the product line by 300% and grow the patent portfolio by 1400%.

Dr. Hill is now known for his work on silicone surfactants, especially for his work on super wetting. During his time as MIT Visiting Scientist with Dow, he also initiated work on silicone-based superhydrophobic surfaces, which led to a publication that has since been cited nearly 1,500 times.

Dr. Hill is the author of 60 publications, including an authoritative book entitled, Silicone Surfactants. He is a highly awarded inventor with accolades that include 3 Dow Corning Technical Achievement Awards, as well as the 2017 AOCS Samuel Rosen Award for Surfactant Chemistry.