Patents by Inventor Richard S. Polizzotti

Richard S. Polizzotti 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).

  • Patent number: 8715545
    Abstract: The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: May 6, 2014
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Dennis G. Peiffer, Barbara Carstensen, Richard S. Polizzotti, Arnold Lustiger, David C. Dalrymple, Walter T. Matuszek
  • Publication number: 20130068469
    Abstract: A pressurized polymer bead such as may be useful as a proppant in hydraulic fracturing is described, including a shell that is substantially impermeable, wherein the shell includes a polyimide polymer. The pressurized polymer bead includes a core region that is at a pressure that is greater than 5 MPa.
    Type: Application
    Filed: August 6, 2012
    Publication date: March 21, 2013
    Inventors: Baojiu Lin, Abdel Wadood M. El-Rabaa, Richard S. Polizzotti
  • Publication number: 20120231979
    Abstract: The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.
    Type: Application
    Filed: September 3, 2010
    Publication date: September 13, 2012
    Inventors: Dennis G. Peiffer, Barbara Carstensen, Richard S. Polizzotti, Paul J. Tindall, David C. Dalrymple
  • Publication number: 20120223450
    Abstract: The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.
    Type: Application
    Filed: September 3, 2010
    Publication date: September 6, 2012
    Inventors: Dennis G. Peiffer, Barbara Carstensen, Richard S. Polizzotti, Arnold Lustiger, David C. Dalrymple, Walter T. Matuszek
  • Publication number: 20120225799
    Abstract: The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.
    Type: Application
    Filed: September 3, 2010
    Publication date: September 6, 2012
    Inventors: Dennis G. Peiffer, Barbara Carstensen, Richard S. Polizzotti, Paul J. Tindall, David C. Dalrymple
  • Patent number: 8088717
    Abstract: A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least partially filled with a foam. The internal pressure of the compressible object may be greater than about 200 psi (pounds per square inch) at atmospheric pressure, greater than 500 psi at atmospheric pressure, greater than 1500 psi at atmospheric pressure or more preferably greater than 2000 psi at atmospheric pressure.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: January 3, 2012
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Patent number: 8088716
    Abstract: A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object and wherein the shell being designed to reduce localized strains of the compressible object during expansion and compression of the compressible object.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: January 3, 2012
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Patent number: 8076269
    Abstract: A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the external pressure is about equal to the internal pressure than when the external pressure is above or below a predetermined compression interval of the compressible object includes a shell that encloses an interior region.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: December 13, 2011
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Patent number: 7972555
    Abstract: Methods for fabricating compressible object are described. These compressible objects may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The method includes selecting an architecture for a compressible object; selecting a wall material for the compressible object; and fabricating the compressible object, wherein the compressible object has a shell that encloses an interior region, and has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: July 5, 2011
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Publication number: 20090090559
    Abstract: A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the external pressure is about equal to the internal pressure than when the external pressure is above or below a predetermined compression interval of the compressible object includes a shell that encloses an interior region.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 9, 2009
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Publication number: 20090091053
    Abstract: Methods for fabricating compressible object are described. These compressible objects may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The method includes selecting an architecture for a compressible object; selecting a wall material for the compressible object; and fabricating the compressible object, wherein the compressible object has a shell that encloses an interior region, and has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 9, 2009
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Publication number: 20090090558
    Abstract: A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pressure (i) greater than about 200 pounds per square inch at atmospheric pressure and (ii) selected for a predetermined external pressure, wherein external pressures that exceed the internal pressure reduce the volume of the compressible object and wherein the shell being designed to reduce localized strains of the compressible object during expansion and compression of the compressible object.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 9, 2009
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Publication number: 20090084604
    Abstract: A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least partially filled with a foam. The internal pressure of the compressible object may be greater than about 200 psi (pounds per square inch) at atmospheric pressure, greater than 500 psi at atmospheric pressure, greater than 1500 psi at atmospheric pressure or more preferably greater than 2000 psi at atmospheric pressure.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 2, 2009
    Inventors: Richard S. Polizzotti, Dennis George Peiffer, Ramesh Gupta, Norman M. Pokutylowicz, Barbara Carstensen, Michael J. Luton, Paul Matthew Spiecker
  • Patent number: 6742603
    Abstract: A method and system is disclosed for extending the depth of a subterranean borehole that uses heated aqueous fluid to dissolve rock of the subterranean formation. The heated aqueous fluid comprises water and hydroxides of Group I elements of The Periodic Table of Elements and mixtures thereof. The drilling system comprises means for delivering aqueous fluid and heating the aqueous fluid prior to contacting rock of a subsurface formation.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: June 1, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Richard S. Polizzotti, Lee Hirsch, Amy B. Herhold, Mehmet D. Ertas
  • Publication number: 20030121701
    Abstract: A method and system is disclosed for extending the depth of a subterranean borehole that uses heated aqueous fluid to dissolve rock of the subterranean formation. The heated aqueous fluid comprises water and hydroxides of Group I elements of The Periodic Table of Elements and mixtures thereof. The drilling system comprises means for delivering aqueous fluid and heating the aqueous fluid prior to contacting rock of a subsurface formation.
    Type: Application
    Filed: June 7, 2002
    Publication date: July 3, 2003
    Inventors: Richard S. Polizzotti, Lee L. Hirsch, Amy B. Herhold, Mehmet D. Ertas
  • Patent number: 6106653
    Abstract: The density of hydroxyl groups present on the surface of glass, such as E-glass fibers, is increased by subjecting the surface to a radio frequency induced gas plasma containing water vapor. Surfaces so treated exhibit enhanced adsorption of hydrolyzed organo silane coupling agents applied to improve adhesion between glass fibers and resin matrices in the manufacture of reinforced composites.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: August 22, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Richard S. Polizzotti, Mohsen Yeganeh, Shawn M. Dougal
  • Patent number: 5814587
    Abstract: Multifunctional molybdenum compounds, which are the reactive product of molybdenum dithiocarbamates and metal dihydrocarbyl dithiophosphates, are new compositions which are useful as lubricant additives. They impart to the lubricant formulations to which they are added low friction and excellent wear properties at reduced phosphorous concentrations.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: September 29, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Elisavet P. Vrahopoulou, Richard S. Polizzotti, Daniel Paul Leta, Stephan D. Cameron
  • Patent number: 5666631
    Abstract: A compacted, single phase or multiphase composite article. Particles for use in the compacted article are produced by providing a precursor compound containing at least one or at least two metals and a coordinating ligand. The compound is heated to remove the coordinating ligand therefrom and increase the surface area thereof. It may then be reacted so that at least one metal forms a metal-containing compound. The particles may be consolidated to form a compacted article, and for this purpose may be used in combination with graphite or diamonds. The metal-containing compound may be a nonmetallic compound including carbides, nitrides and carbonitrides of a refractory metal, such as tungsten. The metal-containing compound may be dispersed in a metal matrix, such as iron, nickel or cobalt. The dispersed nonmetallic compound particles are no larger than about 0.1 micron in particle size and have a volume fraction greater than about 0.15 within the metal matrix.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: September 9, 1997
    Assignee: Exxon Research & Engineering Company
    Inventors: Richard S. Polizzotti, Larry E. McCandlish, Edwin L. Kugler
  • Patent number: 5582760
    Abstract: This invention relates to synthetic based turbo oils, preferably polyol ester-based turbo oils which exhibit exceptional load-carrying capacity by use of a synergistic combination of sulfur (S)-based and phosphorous (P)-based load additives. The S-containing additive of the present invention is alkylthiosuccinic acid, preferably C.sub.4 -C.sub.12 linear alkyl thiosuccinic acid and the P-containing additive is one or more amine phosphate(s). The turbo oil composition consisting of the dual P/S additives of the present invention achieves an excellent load-carrying capacity, which is better than or equivalent to that obtained when each additive was used alone at a comparable treat rate to the total P/S additive combination treat rate, and this lower concentration requirement of the P and S additives allows the turbo oil composition to meet or exceed US Navy MIL-L-23699 requirements including Oxidation and Corrosion Stability and Si seal compatibility.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: December 10, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: Jeenok T. Kim, Richard S. Polizzotti, Stanley J. Brois, Stephen D. Cameron
  • Patent number: 5490968
    Abstract: A compacted, single phase or multiphase composite article. Particles for use in the compacted article are produced by providing a precursor compound containing at least one or at least two metals and a coordinating ligand. The compound is heated to remove the coordinating ligand therefrom and increase the surface area thereof. It may then be reacted so that at least one metal forms a metal-containing compound. The particles may be consolidated to form a compacted article, and for this purpose may be used in combination with graphite or diamonds. The metal-containing compound may be a nonmetallic compound including carbides, nitrides and carbonitrides of a refractory metal, such as tungsten. The metal-containing compound may be dispersed in a metal matrix, such as iron, nickel or cobalt. The dispersed nonmetallic compound particles are no larger than about 0.1 micron in particle size and have a volume fraction greater than about 0.15 within the metal matrix.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: February 13, 1996
    Assignee: Exxon Research and Engineering Company
    Inventors: Richard S. Polizzotti, Larry E. McCandlish, Edwin L. Kugler