Patents by Inventor Philip Dumas

Philip Dumas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Boron carbide as an effective Friedel-Crafts type catalyst
    Publication number: 20090062112
    Abstract: The compound boron carbide, B4C, is an effective catalyst for the alkylation and acylation of aromatics to produce polybenzyls, ketones, esters and alkyl benzenes. The catalyst boron carbide is also effective in conducting intramolecular Freidel-Crafts type reactions to produce cyclic ketones.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Inventor: Philip Dumas
  • Boron carbide as an effective friedel-crafts type catalyst
    Publication number: 20080058565
    Abstract: The compound, boron carbide, B4C, is an effective catalyst for the conversion of benzylic halides to polybenzyls.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 6, 2008
    Inventor: Philip Dumas
  • Boron carbide as an effective friedel-crafts type catalyst
    Publication number: 20080058545
    Abstract: The compound boron carbide, B4C, is an effective catalyst for the synthesis of aromatic esters by reacting benzoyl halides with phenols in the presence of powdered B4C.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 6, 2008
    Inventor: Philip Dumas
  • Boron carbide as an effective Friedel-Crafts type catalyst
    Publication number: 20060281940
    Abstract: The compound boron carbide, B4C, is an effective catalyst for the alkylation and acylation of aromatics to produce polybenzyls, ketones, esters and alkyl benzenes. The catalyst boron carbide is also effective in conducting intramolecular Freidel-Crafts type reactions to produce cyclic ketones.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 14, 2006
    Inventor: Philip Dumas
  • Prestabilization of particulate matter prior the dispersion
    Patent number: 5580375
    Abstract: Disclosed is a method for the plating of a substrate with a composite coating bearing a metallic matrix with finely divided particulate matter dispersed therein. The plating bath is derived by the admixing of a prestabilized particulate matter composition or a precursor thereof along with the required plating chemicals. The use of a prestabilized particulate matter composition offers a convenient way of shipping treated powders devoid of liquids and thereby minimizing shipping costs and aging effects commonly associated with liquid dispersions. The use of the novel prestabilized particulate matter composition along with the plating chemistry provides results substantially the same as those observed from freshly prepared liquid dispersions and their incorporation along with the plating chemicals.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: December 3, 1996
    Assignee: Surface Technology, Inc.
    Inventors: Nathan Feldstein, Philip Dumas
  • Prestabilization of particulate matter prior to their dispersion
    Patent number: 5389229
    Abstract: Disclosed is a method for the plating of a substrate with a composite coating bearing a metallic matrix with finely divided particulate matter dispersed therein. The plating bath is derived by the admixing of a prestabilized particulate matter composition or a precursor thereof along with the required plating chemicals. The use of a prestabilized particulate matter composition offers a convenient way of shipping treated powders devoid of liquids and thereby minimizing shipping costs and aging effects commonly associated with liquid dispersions. The use of the novel prestabilized particulate matter composition along with the plating chemistry provides results substantially the same as those observed from freshly prepared liquid dispersions and their incorporation along with the plating chemicals.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 14, 1995
    Assignee: Surface Technology, Inc.
    Inventors: Nathan Feldstein, Philip Dumas