Doc says med manufacturers using his stent technology

A surgeon considered a leader in cardiac stent technology is taking on Boston Scientific Corp. and Johnson & Johnson for infringement of his patents. Wall Cardiovascular Technologies, the company of Dr. W. Henry Wall in Marshall, filed a complaint for patent infringement against BSC and J&J on Nov. 16. The federal lawsuit was filed in the Marshall Division of the Eastern District of Texas.According to the original complaint, on Dec. 13, 2005, U.S. Patent No. 6,974,475 was duly and legally issued to Dr. W. Henry Wall for an invention titled Angioplasty Stent. All rights to the '475 Patent were assigned to Wall Cardiovascular Technologies LLC in Marshall on Nov. 2, 2007.

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