Patents by Inventor David A. Purta

David A. Purta 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: 20230173400
    Abstract: Devices, systems, and methods of enhancing the gameplay of a toy are disclosed herein. For example, the toy can be a remotely controlled vehicle that includes a radio frequency identification (“RFID”) reader, configured to detect signals generated by a plurality of markers with RFID tags. Each marker of the plurality can be arranged such that the markers define a course for the remotely controlled vehicle. Certain markers can be designated as a starting line, a finish line, and “special,” which would enable programmable and variable gameplay features and actions of the remotely controlled vehicle. The remotely controlled vehicle can be communicably coupled to a mobile computing device configured to receive and process signals from the vehicle, display metrics associated with the gameplay, enable immediate functioning of special tag features, display metrics, and generate control codes transmitted to the vehicle, which control certain features in accordance with the programmed gameplay.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 8, 2023
    Applicant: Schell Games LLC
    Inventors: Jesse SCHELL, David PURTA, Eric POLICARO
  • Patent number: 8618010
    Abstract: The present invention relates to new processes for regenerating oxidized interstitial metal hydride containing catalysts prior to the use of such catalysts in a hydroprocessing process. Interstitial metal hydride containing catalysts are easily oxidized in the environment and once oxidized, the hydroprocessing activity of the interstitial metal hydrides is most often severely diminished and this lost activity due to oxidization of the iMeH is not susceptible to recovery under hydroprocessing conditions. As a result, these catalysts in the present art require considerable special handling in inert environments all through processes from fabrication, shipping, loading, use, and maintenance of the catalyst systems to protect the activity of the interstitial metal hydride components.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: December 31, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Faiz Pourarian, Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Heather A. Elsen, Patricia A. Bielenberg
  • Patent number: 8039652
    Abstract: Transesterification, esterification, and esterification-transesterification (both one-step and two-step) for producing biofuels. The process may be enhanced by one or more of the following: 1) applying microwave or RF energy; 2) passing reactants over a heterogeneous catalyst at sufficiently high velocity to achieve high shear conditions; 3) emulsifying reactants with a homogeneous catalyst; or 4) maintaining the reaction at a pressure at or above autogeneous pressure. Enhanced processes using one or more of these steps can result in higher process rates, higher conversion levels, or both.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: October 18, 2011
    Assignee: Carnegie Mellon University
    Inventors: Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Faiz Pourarian
  • Publication number: 20110119992
    Abstract: The present invention relates to novel interstitial metal hydrides and catalyst containing interstitial metal hydrides that are resistant to oxidation and resultant loss of catalytic activity. The processes of the present invention include use of these improved, oxidation resistant interstitial metal hydride compositions for improved overall hydrogenation, product conversion, as well as sulfur reduction in hydrocarbon feedstreams.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 26, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Faiz Pourarian, Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Gordon F. Stuntz, Jonathan M. McConnachie, Heather A. Elsen, Patricia A. Bielenberg
  • Publication number: 20110119993
    Abstract: The present invention relates to the processing of hydrocarbon-containing feedstreams in the presence of an interstitial metal hydride containing catalyst and hydrogen at process conditions of at least 400 psig pressure and temperatures of at least 200° C. These processes use interstitial metal hydrides that possess significant hydrogen capacities and high hydrogen kinetics rate properties. The catalysts and processes of the present invention may be used with or without radio frequency or microwave energy and are preferably run under conditions of high hydrogen partial pressure above about 350 psia. The catalysts and processes of the present invention can improve overall hydrogenation, product conversion, as well as sulfur reduction in hydrocarbon feedstreams as compared to processes of the prior art operated under similar conditions.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 26, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Faiz Pourarian, Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20110119991
    Abstract: The present invention relates to new processes for regenerating oxidized interstitial metal hydride containing catalysts prior to the use of such catalysts in a hydroprocessing process. Interstitial metal hydride containing catalysts are easily oxidized in the environment and once oxidized, the hydroprocessing activity of the interstitial metal hydrides is most often severely diminished and this lost activity due to oxidization of the iMeH is not susceptible to recovery under hydroprocessing conditions. As a result, these catalysts in the present art require considerable special handling in inert environments all through processes from fabrication, shipping, loading, use, and maintenance of the catalyst systems to protect the activity of the interstitial metal hydride components.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 26, 2011
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Heather A. Elsen, Patricia A. Bielenberg, Faiz Pourarian, Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20100264015
    Abstract: Transesterification, esterification, and esterification-transesterification (both one-step and two-step) for producing biofuels. The process may be enhanced by one or more of the following: 1) applying microwave or RF energy; 2) passing reactants over a heterogeneous catalyst at sufficiently high velocity to achieve high shear conditions; 3) emulsifying reactants with a homogeneous catalyst; or 4) maintaining the reaction at a pressure at or above autogeneous pressure. Enhanced processes using one or more of these steps can result in higher process rates, higher conversion levels, or both.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 21, 2010
    Inventors: Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Faiz Pourarian
  • Publication number: 20100089741
    Abstract: A method is provided for the production of biofuels. The method includes contacting at least one of a plant oil, an animal oil and a mixture thereof with a catalyst including an acid or solid acid, thereby producing a catalyst-oil mixture. RF or microwave energy is applied to at least one of the catalyst, the plant oil, the animal oil, the mixture, and the catalyst-oil mixture to produce the biofuel. The process can be adjusted to produce gasoline, kerosene, jet fuel, or diesel range middle distillate products.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 15, 2010
    Inventors: Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Faiz Pourarian, Richard C. Jackson
  • Patent number: 7625832
    Abstract: A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals and lanthanide metals compose the compound from which the interstitial metal hydride is formed. The catalyst's capabilities can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: December 1, 2009
    Assignee: Carnegie Mellon University
    Inventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20090179028
    Abstract: A processing apparatus, such as a microwave-based processing apparatus. The apparatus includes a vessel having an inner surface defining a chamber configured to hold a reaction mixture, a guide, and a launch coupled to the guide. The guide can be at least partially disposed in the vessel, and is configured to propagate electromagnetic energy. The launch is configured to couple at least a portion of the electromagnetic energy from the guide to the reaction mixture. Example launches include a dielectric window and a projection. Example projections include a metallic projection and a dielectric projection.
    Type: Application
    Filed: December 5, 2008
    Publication date: July 16, 2009
    Inventors: David A. Purta, Marc A. Portnoff
  • Patent number: 7518092
    Abstract: A processing apparatus, such as a microwave-based processing apparatus. The apparatus includes a vessel having an inner surface defining a chamber configured to hold a reaction mixture, a guide, and a launch coupled to the guide. The guide can be at least partially disposed in the vessel, and is configured to propagate electromagnetic energy. The launch is configured to couple at least a portion of the electromagnetic energy from the guide to the reaction mixture. Example launches include a dielectric window and a projection. Example projections include a metallic projection and a dielectric projection.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: April 14, 2009
    Assignee: Capital Technologies, Inc.
    Inventors: David A. Purta, Marc A. Portnoff
  • Publication number: 20080302703
    Abstract: A process for the catalytic reaction of organic compounds, in which the organic compounds are contacted with a catalyst comprising an interstitial metal hydride, having a reaction surface, to produce a catalyst-organic compound mixture, energy is applied, monatomic hydrogen is produced at the reaction surface of the interstitial metal hydride, and the organic compounds are reacted with the monatomic hydrogen. Reactions accomplished by this process include petroleum hydrocracking and hydrotreating processes. The method's performance can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 11, 2008
    Inventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20080233020
    Abstract: A processing apparatus, such as a microwave-based processing apparatus. The apparatus includes a vessel having an inner surface defining a chamber configured to hold a reaction mixture, a guide, and a launch coupled to the guide. The guide can be at least partially disposed in the vessel, and is configured to propagate electromagnetic energy. The launch is configured to couple at least a portion of the electromagnetic energy from the guide to the reaction mixture. Example launches include a dielectric window and a projection. Example projections include a metallic projection and a dielectric projection.
    Type: Application
    Filed: March 15, 2007
    Publication date: September 25, 2008
    Applicant: CAPITAL TECHNOLOGIES, INC.
    Inventors: David A. Purta, Marc A. Portnoff
  • Patent number: 7387712
    Abstract: A process for the catalytic reaction of organic compounds, in which the organic compounds are contacted with a catalyst comprising an interstitial metal hydride, having a reaction surface, to produce a catalyst-organic compound mixture, energy is applied, monatomic hydrogen is produced at the reaction surface of the interstitial metal hydride, and the organic compounds are reacted with the monatomic hydrogen. Reactions accomplished by this process include petroleum hydrocracking and hydrotreating processes. The method's performance can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: June 17, 2008
    Assignee: Carnegie Mellon University
    Inventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20070087933
    Abstract: A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals and lanthanide metals compose the compound from which the interstitial metal hydride is formed. The catalyst's capabilities can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Application
    Filed: December 5, 2006
    Publication date: April 19, 2007
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: David Purta, Marc Portnoff, Faiz Pourarian, Margaret Nasta, Jingfeng Zhang
  • Patent number: 7157401
    Abstract: A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals and lanthanide metals compose the compound from which the interstitial metal hydride is formed. The catalyst's capabilities can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: January 2, 2007
    Assignee: Carnegie Mellon University
    Inventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20050274065
    Abstract: Transesterification, esterification, and esterification-transesterification (both one-step and two-step) for producing biofuels. The process may be enhanced by one or more of the following: 1) applying microwave or RF energy; 2) passing reactants over a heterogeneous catalyst at sufficiently high velocity to achieve high shear conditions; 3) emulsifying reactants with a homogeneous catalyst; or 4) maintaining the reaction at a pressure at or above autogeneous pressure. Enhanced processes using one or more of these steps can result in higher process rates, higher conversion levels, or both.
    Type: Application
    Filed: June 15, 2004
    Publication date: December 15, 2005
    Applicant: Carnegie Mellon University
    Inventors: Marc Portnoff, David Purta, Margaret Nasta, Jingfeng Zhang, Faiz Pourarian
  • Publication number: 20040074760
    Abstract: A method is provided for the production of biofuels. The method includes contacting at least one of a plant oil, an animal oil and a mixture thereof with a catalyst including an acid or solid acid, thereby producing a catalyst-oil mixture. RF or microwave energy is applied to at least one of the catalyst, the plant oil, the animal oil, the mixture, and the catalyst-oil mixture to produce the biofuel. The process can be adjusted to produce gasoline, kerosene, jet fuel, or diesel range middle distillate products.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Applicant: Carnegie Mellon University
    Inventors: Marc A. Portnoff, David A. Purta, Margaret A. Nasta, Jingfeng Zhang, Faiz Pourarian, Richard C. Jackson
  • Publication number: 20040074759
    Abstract: A process for the catalytic reaction of organic compounds, in which the organic compounds are contacted with a catalyst comprising an interstitial metal hydride, having a reaction surface, to produce a catalyst-organic compound mixture, energy is applied, monatomic hydrogen is produced at the reaction surface of the interstitial metal hydride, and the organic compounds are reacted with the monatomic hydrogen. Reactions accomplished by this process include petroleum hydrocracking and hydrotreating processes. The method's performance can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Applicant: Carnegie Mellon University
    Inventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang
  • Publication number: 20040077485
    Abstract: A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals and lanthanide metals compose the compound from which the interstitial metal hydride is formed. The catalyst's capabilities can be further enhanced using radio frequency (RF) or microwave energy.
    Type: Application
    Filed: October 17, 2002
    Publication date: April 22, 2004
    Applicant: Carnegie Mellon University
    Inventors: David A. Purta, Marc A. Portnoff, Faiz Pourarian, Margaret A. Nasta, Jingfeng Zhang