Patents received Sept. 23:

Crucible Materials Corp. for "Clad power metallurgy article and method for producing the same, No. 6,623,690." Inventors were Frank J. Rizzo, McMurray, Brian A. Hann, Pittsburgh, Joseph F. Perez, Elizabeth. The invention relates to a clad article of powdered metal and a method for producing the same, wherein the substrate and the clad layer are both of powdered metal of dissimilar composition.

PPG Industries Ohio Inc., for "Coating compositions having improved adhesion, coated substrates and methods related thereto, No. 6,623,791. Inventors were Richard J. Sadvary and Lawrence G. Anderson, both of Pittsburgh, Shiryn Tyebjee, Allison Park, Thomas R. Hockswender, Gibsonia. Certain embodiments of the present invention are directed to coating compositions comprising at least one reactive functional group-containing polysiloxane, at least one reactant comprising at least one functional group that is reactive with the functional group(s) of the polysiloxane, and at least one boron-containing compound selected from boric acid, boric acid equivalents and mixtures thereof. Other embodiments of the present invention are directed to cured coatings formed from the foregoing coating compositions. Further embodiments are directed to substrates coated with the aforementioned compositions.

PPG Industries Ohio Inc., for "Multilayer heat processable vacuum coatings with metallic properties and method of heat processing, No. 6,623,794." Inventors were James J. Finley, O'Hara Township, Mehran Arbab, Pittsburgh, Thomas J. Waynar, New Kensington. This invention relates generally to the art of vacuum coating, and more particularly to the art of producing vacuum coatings which maintain metallic properties throughout high temperature processes such as tempering.

PPG Industries Ohio Inc. for "Modified aminoplast crosslinkers and powder coating compositions containing such crosslinkers, No. 6,624,249." Inventors were Ronald R. Ambrose, Pittsburgh, Anthony M. Chasser, Allison Park, Shengkui Hu, Baden, Jackie L. Smith, Mars. The present invention relates to crosslinking agents based on modified aminoplast resins and to powder coating compositions containing these crosslinking agents.

Carnegie Mellon University, for "Polymerization process for ionic monomers, No. 6,624,262." Inventors were Krzysztof Matyjaszewski and Nicolay Tsarevsky, both of Pittsburgh. The invention is directed towardcontrolled polymerization processes for monomers bearing ionic substituents and for preparation of block copolymers, including water soluble block copolymers. More specifically, the invention is directed toward extending and improving the utility of controlled or living radical (co)polymerization processes by disclosing the parameters and requirements for the controlled polymerization of radically (co)polymerizable monomers from initiators bearing additional functionality and provides for the direct production of polymers bearing ionic substituents by the direct (co)polymerization of monomers comprising ionic substituents, particularly in the presence of water.

Carnegie Mellon University, for "(Co) polymers and a novel polymerization process based on atom (or group) transfer radical polymerization, No. 6,624,263." Inventors Krzysztof Matyjaszewski and Jin-Shan Wang, both of Pittsburgh. The present invention concerns novel (co)polymers and a novel radical polymerization process based on transition metal-mediated atom or group transfer polymerization ("atom transfer radical polymerization").

PPG Industries Ohio Inc., for "Curable polyurethanes, coatings prepared therefrom, and method of making the same, No. 6,624,276." Inventors were Paul H. Lamers, Steinheim, DE, Jonathan T. Martz, Glenshaw, Lawrence D. Meyers, Strongsville, Ohio, Carolyn A. Novak and Kurt G. Olson, both of Gibsonia, James P. Rowle, Freeport, Pittsburgh. The present invention is directed to a curable polyurethane material, coatings prepared therefrom, and methods of making the same.

-- U.S. Patent and Trademark Office, www.uspto.gov