Patents by Inventor Brian D. Roberts

Brian D. Roberts 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).

  • Publication number: 20100018430
    Abstract: A jacketed bullet has a core of a dense metal or metal alloy, an inner jacket at least partially surrounding and bonded to the core; and an outer jacket at least partially surrounding the inner jacket and core.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 28, 2010
    Inventors: Kyle A. Masinelli, Gerald T. Eberhart, Brian D. Roberts
  • Patent number: 6054627
    Abstract: Disclosed are catalysts in powdered form comprising a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof provided that the promoter metal is not zinc if the first metal is zinc, wherein the average particle diameter of the powder is from about 6 to about 20 microns; and the particle surface area is from about 20 to about 70 m.sup.2 /g. Also disclosed is a process for preparing such catalysts and a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters with catalysts of the type described.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: April 25, 2000
    Assignee: Engelhard Corporation
    Inventors: Deepak S. Thakur, Eugene Palka, Thomas I. Sullivan, Eugene Nebesh, Brian D. Roberts
  • Patent number: 6049008
    Abstract: Shaped catalyst compositions are disclosed comprising (i) at least one metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt and iron, (ii) calcium silicate and (iii) at least one clay material. Also disclosed are a process for preparing the foregoing shaped compositions and a process for hydrogenating aldehydes, ketone, carboxylic acids, carboxylic acid esters and nitro aroniate compounds using these shaped catalysts.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: April 11, 2000
    Assignee: Engelhard Corporation
    Inventors: Brian D. Roberts, William J. Carrick, Deepak S. Thakur
  • Patent number: 5977010
    Abstract: Shaped catalyst compositions are disclosed comprising (i) at least one metal selected from the group consisting of copper, manganese, zinc, nickel, cobalt and iron, (ii) calcium silicate and (iii) at least one clay material. Also disclosed are a process for preparing the foregoing shaped compositions and a process for hydrogenating aldehydes, ketone, carboxylic acids, carboxylic acid esters and nitro aroniate compounds using these shaped catalysts.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: November 2, 1999
    Assignee: Engelhard Corporation
    Inventors: Brian D. Roberts, William J. Carrick, Deepak S. Thakur
  • Patent number: 5418201
    Abstract: In one embodiment, the invention relates to a catalyst in powdered form comprising the oxides of copper, iron, aluminum and manganese wherein the atomic ratio of copper to iron is at least 1:1. In another embodiment, the invention relates to a process for preparing such hydrogenation catalysts which comprises the steps of(A) preparing a first aqueous solution containing at least one water-soluble copper salt, at least one water-soluble iron salt, and at least one water-soluble manganese salt;(B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent;(C) mixing the first and second solutions wherein an insoluble solid is formed;(D) recovering the soluble solid; and(E) calcining the recovered solid to form the desired catalyst.The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: May 23, 1995
    Assignee: Engelhard Corporation
    Inventors: Brian D. Roberts, Deepak S. Thakur, Thomas J. Sullivan, Robert A. Plundo
  • Patent number: 5243095
    Abstract: In one embodiment, the invention relates to a catalyst in powdered form comprising the oxides of copper, iron, aluminum and manganese wherein the atomic ratio of copper to iron is at least 1:1. In another embodiment, the invention relates to a process for preparing such hydrogenation catalysts which comprises the steps of(A) preparing a first aqueous solution containing at least one water-soluble copper salt, at least one water-soluble iron salt, and at least one water-soluble manganese salt;(B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent;(C) mixing the first and second solutions wherein an insoluble solid is formed;(D) recovering the soluble solid; and(E) calcining the recovered solid to form the desired catalyst.The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: September 7, 1993
    Assignee: Engelhard Corporation
    Inventors: Brian D. Roberts, Deepak S. Thakur, Thomas J. Sullivan, Robert A. Plundo
  • Patent number: 5155086
    Abstract: In one embodiment, the invention relates to a catalyst in powdered form which comprises a major amount of the oxides of copper and zinc, and a minor amount of aluminum oxide wherein the pore volume of pores of said catalysts having a diameter between about 120 and about 1000 .ANG. is at least about 40% of the total pore volume. In another embodiment, the invention relates to a process for preparing hydrogenation catalysts comprising the oxides of copper, zinc and aluminum which comprises the steps of(A) preparing a first aqueous solution containing at least one water-soluble copper salt and at least one water-soluble zinc salt;(B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent;(C) mixing the first and second solutions whereby an insoluble solid is formed;(D) recovering the insoluble solid.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: October 13, 1992
    Assignee: Engelhard Corporation
    Inventors: Deepak S. Thakur, Brian D. Roberts, Thomas J. Sullivan, Anita L. Vichek
  • Patent number: 5134108
    Abstract: This hydrogenation catalyst comprises a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof provided that the promotor metal is not zinc if the first metal is zinc. The average particle diameter of the powder is from about 6 to about 20 microns; and the particle surface area is from about 20 to about 70 m.sup.2 /g.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: July 28, 1992
    Assignee: Engelhard Corporation
    Inventors: Deepak S. Thakur, Eugene Palka, Thomas J. Sullivan, Eugene Nebesh, Brian D. Roberts
  • Patent number: 5080718
    Abstract: A pigment of irregular-shaped particles is described which comprises crystallites of the empirical formula A.sub.x B.sub.y C.sub.z wherein A and B are different; A is cobalt, nickel, copper, zinc, cadmium, iron, manganese or any combination thereof; B is aluminum, chromium, molybdenum, iron, vanadium, manganese or any combination thereof; C is oxygen, selenium, tellurium or sulfur; x is 1, 2 or 3; y is 2 or 3; and z is greater than 3; the crystallites have an average size of from about 75 to about 600 Angstroms; and the surface area of the pigment particles is greater than zero up to about 20 m.sup.2 /g. In one embodiment, when the pigment contains a mixture of copper oxide, iron oxide, manganese oxide and no chromium, the pigment contains no more than 10% of manganese, and when the pigment contains copper oxide, chromium oxide, and manganese oxide, the pigment contains up to about 5% of manganese oxide, the mole ratio of chromium to copper is no greater than about 1.3 to 1.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: January 14, 1992
    Assignee: Engelhard Corporation
    Inventors: Thomas J. Sullivan, Deepak S. Thakur, Brian D. Roberts, Mark E. Gall, Eugene Palka