The US Patent and Trademark Office (USPTO) has granted tenth US patent to Quick-Med Technologies' non-leaching NIMBUS antimicrobial technology, designed for use in wound care and other medical applications.

The patent, which is entitled as ‘Disinfectant with Durable Activity Based on Alcohol-Soluble Quaternary Ammonium Polymers and Copolymers’, provides prolonged antimicrobial property to a variety of surfaces including skin.

The patent No. 8,343,523 covers composition and method for several NIMBUS polyurethane quaternary applications including certain formulations of the company’s proprietary NimbuDerm hand sanitizer.

The patent also covers various NIMBUS applications including medical adhesives, foam wound dressings, sutures, catheters and other medical tubing.

Quick-Med president Bernd Liesenfeld said, "This new patent captures additional special characteristics of our unique NIMBUS technology and provides intellectual property protection for several key applications of our growing family of NIMBUS antimicrobial polymers."