International trade · 01/06/2020Updated: 10/17/2026 · 1 min read
Kirsch Research and Development Files Complaint with U.S. International Trade Commission Over Synthetic Roofing Underlayment Products
Summary
Kirsch Research and Development, LLC, has filed a complaint with the U.S. International Trade Commission alleging that certain synthetic roofing underlayment products and components infringe on U.S. Patent No. 8,765,251 and are being sold in the United States.