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 Expert  721698

Expert in Polymer, Fiber, and Bio-Based Materials; Patent Litigation Support

Available for your Consulting and Expert Witness Needs

South Carolina (SC)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert is an emeritus professor in the Department of Materials Science and Engineering, with a primary focus in polymeric materials. The physics of fibers incorporates all aspects from fiber production through fiber-based materials utilization. For efficient production, the physics and chemistry of the starting material, synthetic polymers in this case, must be understood; this topic thus includes the influence of process parameters on fiber properties. His expertise in fiber structure/property relationships extends to natural fibers, in particular wool and cotton. He has published many papers and graduated several MS and Ph.D. students in this discipline. Utilization demands understanding of the properties of the final, target, material, and of the fiber properties on which the properties of the final material depend.

Advanced materials, such as high-performance polymers and environmentally responsive ("smart") materials is one of his areas of expertise.

His expertise is founded on over 30 years of research and teaching experience in all of these areas. He has studied the physics of fiber formation, primarily by melt spinning, in his laboratory and has taught graduate level courses on the subject. In addition, he has performed or overseen the testing of fiber properties, and has extensive experience in this area. Synthetic fiber production and utilization has been the main thrust of his professional life for over 30 years. A large component of this topic includes the influence of process parameters on fiber properties, in which expert has extensive experience. This area is closely aligned with the above area.

He has extensive research experience in natural fibers, primarily cotton, wool, and silk, but also ramie, flax, hemp and other plant-based fibers. His expertise extends to modifications of these materials. He has broad experience in silks, extending beyond silk-worm silk to spider silk. In his spider silk research, he has done work in biomimetics and in genetically modified proteins. Expert has active research in the area of biologically-based (protein) materials science. The essential area of biocompatibility, the interactions of materials with biological systems, is included in this area.

Expert has worked with all manner of fibrous materials, including the standard fabric structures (woven, knitted, braided) and nonwoven materials and coated fabrics. His expertise extends to analyzing the properties of these fibrous materials, including filtration efficiency.


fiber physics


synthetic fiber




fiber testing


polymer fiber structure-property relationship


fiber extrusion


fiber spinning


melt spinning


synthetic fiber manufacturing


natural fiber



Expert has legal consulting experience that includes personal injury, liability and product serviceability, as relate to his expertise in polymer fiber and fiber-based materials. In the area of patents, his experience includes expert support for patent infringement litigation and patent validity/invalidity cases. For product serviceability liability consulting, he can provide reports based on laboratory testing, extant literature searches, and analysis of patents and other documents.

He maintains access to the testing laboratories at Clemson University (those services are billed separately) as an emeritus professor and a research professor; he directly oversees the testing and provides expert interpretation of the data obtained in the tests. In Expert's prior litigation experience, he has been deposed and served as an expert witness at trial.


claim (patent)


intellectual property


patent claim construction


patent infringement



Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Charlotte, North Carolina;  Asheville, North Carolina;  Gastonia, North Carolina;  Augusta, Georgia;  Athens, Georgia;  Knoxville, Tennessee;  Johnson City, Tennessee;  and Greenville, South Carolina.

Often requested
with this expert:

Textile Fibers
Textiles, Composite Materials, Failure Mechanisms, Fabrics,...
Textile Flammability and Dyes, QC for Color, Textile...
Processing of Fibers, Yarns

Year   Degree   Subject   Institution  
1982   Ph.D.   Polymer Fiber Physics   University of California, Davis  
1973   MA   Physics   University of California, Davis  
1971   BS   Physics   University of California, Davis  
1965   AA   Engineering   Sierra Community College, CA  

Work History:
Years   Employer   Department   Title   Responsibilities

2005 to


Expert's Firm





He is the sole proprietor of his eponymous consulting enterprise.

1984 to 2014


Clemson University


School of Materials Science and Engineering


Professor of Polymer Science


Expert taught courses and conducted research in polymer fiber physics.

1975 to 1984


University of California



Staff Research Associate


Expert conducted textile and fiber research.

Career Accomplishments:

Expert is a member of the American Physical Society (Division of High Polymer Physics), the American Chemical Society, the Materials Research Society, and The Fiber Society. Expert serves as an officer (Secretary) of the Fiber Society.

Professional Appointments

He is a member of the editorial board of the Textile Research Journal.

Publications and Patents Summary

Expert has written 35 peer-reviewed publications, two book chapters and edited one book. He has given 19 international invited talks, most recently “Biomimetic Textiles” Keynote address at SPIE, March 10, 2013.

Selected Publications and Publishers  
 - Journal of Polymer Science  
 - Journal of Applied Polymer Science  
 - International Polymer Processing  

Government Experience:
Years   Agency   Role   Description
1967 to 1969   USNR   Active Duty, Gunnery Fire Control Radar Technician (E-5)   Honorable Discharge, September 1972.

Consulting Services:
Selected Consulting Examples:
  • Expert has been consulting independently since 2005.
Recent Client Requests:
  • Expert for consulting on Yarn Manufacturer Process Validation.
  • Expert in Medical Textiles.
  • Expert for consulting on Synthetic Hair fiber.
  • Expert for consulting on on Superabsorbent Development using Novel Biomaterials.
  • Expert for consulting on Using Spunbonded Polyolefin patient contact.
  • Expert in textile engineering
  • Expert for consulting on analysys of existing PP webbing material content.
  • Expert in aramid application scan to assist with Business development.
  • Supercritical oil extraction expert for consulting on supercritical co2 extraction.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Expert has provided expert advice and witness services for several years. He has provided written expert opinions in litigation matters and has experience with being deposed and has testified in Federal Court.

Expert Provided Patent Infringement Litigation support for Fenwick and West, LLP, San Francisco 2011-2015 for the defendants; deposed and testified in court; under appeal.

Expert provided Patent Infringement Litigation support for the defendants for Finnegan, Henderson, Farabow, Garrett & Dunner, LLP, Atlanta Office (2015-present).

Expert served as a testifying expert (deposition) in a personal injury case, for Law Offices of Robert Stutman on behalf of plaintiffs (2009-2010).

Recent Litigation Client Requests:
  • Fabric expert for consulting on and evaluation of nylon shorts involved in a drowning.
  • Expert in polyether fibers needed for consultation regarding a nylon strap that "let loose" which was holding a beam.
  • Materials science expert for consulting on the composition & analysis of consumer product.
  • Flame retardant expert for consulting on Flame Retardant Fibers.
  • Material science expert testimony for consulting on armor plating and chemical composition of same.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
2003 to 2003   Mulhouse, France   Invited Professor, ENSITM, Université de Haute Alsace, Mulhouse-Colmar, France.
2009 to 2009   Beijing, PRC   Invited presenter at Advanced Fibers symposium, China Textile University.
1915 to 1915   Aachen Germany   He was awarded a Karman Fellowship to conduct research at RWTH Aachen in the technical textiles division.

Language Skills:
Foreign Language   Description
French   His speaking skill is minimal, but he can read and write with some effort.

Additional Skills and Services:

Expert has given fiber science training seminars in the US and abroad. Expert presented a Polymer physics training seminar at Heberlein Fasertechnologie, Switzerland, 2000.


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