Company info


8138 Crestridge Rd.

Fairfax Station VA 22039 us



Forensics and Litigation
HEAR LLC provides research, consultation and testimony assistance to litigants who require expertise that HEAR’s principals cover, which includes hearing, acoustics, ergonomics, noise annoyance, warning signals and patent issues.  One of HEAR LLC's principals (Dr. John Casali) is an experienced expert witness with involvement in over 50 court cases and public hearings to date, on many issues involving human factors engineering, human hearing and acoustics.  He has supported case work in all levels of the U.S. court system, as well as in arbitrations and public hearings.  Dr. Kichol Lee and Dr. John Keady are both experienced in background research and testing to support litigation. Dr. Lee primarily provides expertise in acoustical and audiometric tests, while Dr. Keady performs a wide range of product performance tests as well as intellectual property research in support of patent prosecution actions and litigation.

HEAR’s litigation and forensic expertise has been applied to:

Civil tort cases involving:

    • Products Liability

    • Premises Liability

    • Property Zoning

Intellectual Property cases involving:
    • Patent Infringement
    • Patent Invalidation
    • Inter Partes and Ex Partes Reviews in the U.S. Patent & Trademark Office
    • International Trade Commission Cases

Criminal cases involving:
    • Human Factors issues, especially those of a human hearing or acoustics nature

Public Hearings involving:
    • Property Zoning Issues
    • Ordinance Development (e.g., noise ordinances)
    • Conditional Use Permits
    • EPA Product Noise Labeling Standards Promulgation