Northstar Announces Limestone As Fourth Product Line, Supported by New Patent on Recovery Process
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Sep 24 2025
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Source: PRnewswire
New Product Line and Patent: Northstar Clean Technologies has successfully separated and recovered limestone from asphalt shingles, establishing a fourth product line and receiving a new patent for this process, which is valid until 2045.
Sustainable Innovation: The company focuses on sustainable recovery and reprocessing of asphalt shingles, aiming to lead in the circular economy by reusing materials that would otherwise end up in landfills.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
