NL Industries Inc's NLChemicals Inc subsidiary said it filed two complaints against
&lt;United Catalysts Inc> for patent infringements and
misappropriation of confidential information.
    NL said the patent infringement suit alleges that United's
product, Thixogel DSS, infringes on NL's patent protecting its
Bentone 128 product.
    NL said it filed the patent complaint in the United States
District Court for the Western District of Kentucky, and the
misappropriation complaint in Circuit Court, Jefferson County,
Ky. United Catalysts is based in Louisville, Ky.
 Reuter
