Submarine pump to make European Debut

Unidym, Inc., a majority-owned subsidiary of Arrowhead Research Corporation, announced today that U.S. Patent No. 7,265,174 has been issued by the U.S. Patent and Trademark Office. With respect to transparent conductive films, Clemson University has exclusively licensed this patent to Unidym. Unidym is a leader in the development and manufacture of carbon nanotubes for applications in the electronics industry. Unidym, which recently merged with Carbon Nanotechnologies, Inc. (CNI), possesses a foundational patent portfolio that covers nearly every aspect of carbon nanotube manufacturing and processing. It will be shown for the first time in Europe at ECOC 2007.

U.S. Patent No. 7,265,174 includes composition of matter claims covering nanotube-based films that are electrically conductive and at least 80% optically transparent. It is the latest addition to Unidym¡¦s extensive patent portfolio on carbon nanotechnology, now numbering over 70 issued U.S. Patents.

¡§The issued patent covers products that Unidym is currently developing for the touch screen, flat panel display, solar cell and solid state lighting markets,¡¨ stated Art Swift, President and CEO of Unidym. ¡§With its March 22, 2001 priority date, this patent predates any similar composition of matter claim that we know of.¡¨

In addition to this patent, Unidym owns or has exclusive rights to a growing number of issued patents covering fundamental compositions of matter, manufacturing of carbon nanotubes, and processing of carbon nanotubes (purification, dispersion, functionalization, and doping). Unidym also owns or has exclusive rights to issued patents and patent applications covering other nanotube-based products such as composites, therapeutics, solar cells, and transistors.

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