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Tersus Receives Patent from U.S. Patent Office

Tersus Environmental Receives Second Patent Related to Zero-Valent Metal Particle Suspensions

WAKE FOREST, NORTH CAROLINA, USA (November 8, 2022) -Tersus Environmental today announced that the U.S. Patent and Trademark Office has issued patent 11,491,522 B2 (the ‘522 patent) which further strengthens the company’s intellectual property coverage for the diverse selection of products and technologies addressing the remediation of contaminated soils and aquifers.

Officially granted on November 8, 2022, the ‘522 patent is titled, “Zero-Valent Metal Suspension in Non-Aqueous Phase for Water Remediation.” This is the company’s second patent related to zero-valent metal particle suspensions. U.S. Patent 11,123,779 B2 titled “Method and a Chemical Composition for Accelerated In Situ Biochemical Remediation” was granted on September 21, 2021.

The ‘522 patent claims are generally directed towards a zero-valent metal particle suspension for the remediation of soil and groundwater. The claims are also generally directed towards a chemical composition comprising vegetable oil, an oil thickening agent, a surfactant, and a particulate zero-valent metal forming a zero-valent metal suspension in a non-aqueous phase, wherein said suspension network comprises zero-valent metal particles encapsulated within a liquid membrane formed of the vegetable oil.
Authors for the newly issued ‘522 patent include Sangho Bang, Ph.D.; David Alden, P.E.; Gary Birk, P.E.; Jeff Harwell, Ph.D.; and Benjamin Shiau, Ph.D.


Tersus Environmental, LLC
Sherri Scott
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