Patents by Inventor David H. Olson
David H. Olson 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: 20240097346Abstract: Methods for constructing multi-walled carbon nanotube (MWCNT) antenna arrays, may include: variable doping of the MWCNTs, forming light pipes with layers of variable dielectric glass, forming geometric diodes on full-wave rectified devices that propagate both electrons and holes, using clear conductive ground plans to form windows that can control a building's internal temperature, and generating multiple lithographic patterns with a single mask.Type: ApplicationFiled: November 21, 2023Publication date: March 21, 2024Inventors: Laurence H. COOKE, Darin S. OLSON, Paul COMITA, Robert E. COUSINS, Albert K. HENNING, Andreas HEGEDUS, David B. COOKE, Yao Te CHENG, John BURKE, Richard T. PRESTON
-
Publication number: 20240084452Abstract: A tray for a vaporization vessel that includes a tray having a side wall, a bottom plate, one or more apertures that extend through the bottom plate, and a duct that extends through and from the bottom plate. The tray configured to support a solid reagent to be vaporized. A method of assembling the tray that includes forming a first tray that has the side wall and the bottom plate. A vaporization vessel that includes one or more of the trays.Type: ApplicationFiled: October 13, 2023Publication date: March 14, 2024Inventors: Bryan C. HENDRIX, Scott L. Battle, David J. Eldridge, John N. Gregg, Jacob Thomas, Manuel F. Gonzales, Kenney R. Jordan, Benjamin H. Olson
-
Publication number: 20220146443Abstract: A method of measuring thermal conductivity of a material includes focusing a modulated pump laser beam having a modulation frequency that induces a cyclical steady-state temperature rise at a spot of a material, focusing a CW probe laser beam at the spot and generating a reflected probe beam reflected from the spot on the material, the reflected probe beam having a magnitude of a reflectance signal as a function of the temperature of the material and being periodic corresponding to the cyclical temperature rise, measuring the magnitude of the reflectance signals of the reflected probe beam, and determining the thermal conductivity by fitting the power of the pump beam and the measured magnitude of the reflectance signal to a thermal model which is a function of a thermal conductivity of the material relating the radial heat flux to the temperature rise.Type: ApplicationFiled: August 28, 2019Publication date: May 12, 2022Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATIONInventors: Jeffrey L. BRAUN, David H. OLSON, John T. GASKINS, Patrick E. HOPKINS
-
Patent number: 8796462Abstract: Zeolitic Imidazolate Frameworks (ZIFs) characterized by organic ligands consisting of imidazole ligands that are either essentially all 2-chloroimidazole ligands or essentially all 2-bromoimidazole ligands are disclosed. Methods for separating propane and propene with the ZIFs of the present invention, as well as other ZIFs, are also disclosed.Type: GrantFiled: May 17, 2011Date of Patent: August 5, 2014Assignee: Rutgers, The State University of New JerseyInventors: Jing Li, Kunhao Li, David H. Olson
-
Publication number: 20120275993Abstract: Mesoporous compositions and methods for preparing mesoporous and/or mesostructured materials from inorganic materials are provided. Various embodiments described herein relate to the preparation of mesoporous and/or mesostructured zeolites via a dehydroxylation pretreatment followed by a mesopore introduction step.Type: ApplicationFiled: April 27, 2012Publication date: November 1, 2012Applicant: RIVE TECHNOLOGY, INC.Inventor: David H. Olson
-
Publication number: 20110282067Abstract: Zeolitic Imidazolate Frameworks (ZIFs) characterized by organic ligands consisting of imidazole ligands that are either essentially all 2-chloroimidazole ligands or essentially all 2-bromoimidazole ligands are disclosed. Methods for separating propane and propene with the ZIFs of the present invention, as well as other ZIFs, are also disclosed.Type: ApplicationFiled: May 17, 2011Publication date: November 17, 2011Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEYInventors: Jing Li, Kunhao Li, David H. Olson
-
Patent number: 7453084Abstract: A transistor has an emitter, a spin-selective base, a collector, a first barrier interposed between the spin-selective base and the emitter, a second barrier interposed between the spin-selective base and the collector, and a transfer ratio of more than 10?3.Type: GrantFiled: May 24, 2005Date of Patent: November 18, 2008Assignee: Seagate Technology LLCInventors: Janusz J. Nowak, Brian W. Karr, David H. Olson, Eric S. Linville, Paul E. Anderson
-
Patent number: 7332640Abstract: The present invention is related to a method for kinetically separating a light hydrocarbon mixture comprising at least two components by preferentially adsorbing a first component on a zeolite adsorbent comprising 8-member rings of tetrahedra as the pore opening controlling hydrocarbon diffusion and alkali metal cations balancing a framework charge, wherein a second component is not preferentially adsorbed. The novel process comprises contacting the light hydrocarbon mixture with a zeolite adsorbent having a SiO2/Al2O3 ratio greater than about 50 and less than 200 and further having a diffusion rate at least 50 times greater for the first component as compared to the second component, and then recovering at least one of the first component or the second component.Type: GrantFiled: October 31, 2003Date of Patent: February 19, 2008Assignee: Exxonmobile Research and Engineering CompanyInventors: Sebastian C. Reyes, David H. Olson, Haiming Liu, Karl G. Strohmaier, Jose G. Santiesteban
-
Patent number: 6777583Abstract: There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The catalyst may be used in a hydrocarbon conversion process, such as toluene disproportionation.Type: GrantFiled: August 26, 2002Date of Patent: August 17, 2004Assignee: ExxonMobil Oil CorporationInventors: Jeffrey S. Beck, Jane C. Cheng, Sharon B. McCullen, David H. Olson, David L. Stern
-
Publication number: 20030121415Abstract: A method of selectively adsorbing propylene in mixtures of propylene/propane and propylene/olefins through the use of zeolites having structures with a maximum of 8-member rings of tetraheda controlling the diffusion rate. Suitable zeolite adsorbents are those having the CHA and ITE structure types. Other 8-member ring zeolites, including aluminosilicates, with a Si:Al molar ratio of at least about 200 and having substantially no free acid are also suitable adsorbents.Type: ApplicationFiled: December 2, 2002Publication date: July 3, 2003Inventor: David H. Olson
-
Patent number: 6576582Abstract: There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The catalyst may be used in a hydrocarbon conversion process, such as toluene disproportionation.Type: GrantFiled: November 15, 1995Date of Patent: June 10, 2003Assignee: ExxonMobil Oil CorporationInventors: Jeffrey S. Beck, Jane C. Cheng, Sharon B. McCullen, David H. Olson, David L. Stern
-
Patent number: 6538167Abstract: There is provided a process for converting methanol and/or dimethyl ether to a product containing C2 to C4 olefins which comprises the step of contacting a feed which contains methanol and/or dimethyl ether with a catalyst comprising a porous crystalline material. The contacting is conducted in the presence of a cofed aromatic compound under conversion conditions including a temperature of about 350° C. to about 550° C. and a methanol and/or dimethyl ether partial pressure less than or equal to 50 psia (345 kPa). The porous crystalline material used in the catalyst has a pore size greater than the critical diameter of the aromatic compound and a Diffusion Parameter for 2,2-dimethylbutane of about 0.1 to about 26 sec−1 when measured at a temperature of 120° C. and a 2,2- dimethylbutane pressure of 60 torr (8 kPa), and the aromatic compound is capable of alkylation by the methanol and/or dimethyl ether under said conversion conditions.Type: GrantFiled: October 13, 2000Date of Patent: March 25, 2003Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen H. Brown, William A. Weber, Reuel Shinnar, Khushrav E. Nariman, Larry A. Green, Mark F. Mathias, David H. Olson, Robert A. Ware
-
Publication number: 20030055305Abstract: There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The catalyst may be used in a hydrocarbon conversion process, such as toluene disproportionation.Type: ApplicationFiled: August 26, 2002Publication date: March 20, 2003Inventors: Jeffrey S. Beck, Jane C. Cheng, Sharon B. McCullen, David H. Olson, David L. Stern
-
Patent number: 6506954Abstract: There is provided a process for converting methanol and/or dimethyl ether to a product containing olefin, e.g., C2 to C4 olefins, C9+ aromatics and non-C9+ aromatics which comprises: 1) contacting a feed which contains methanol and/or dimethyl ether with a catalyst comprising a porous crystalline material, said contacting step being conducted in the presence of aromatics comprising C9 or C9+ aromatic compound produced in said process under conversion conditions including a temperature of 350° C. to 480° C. and a methanol partial pressure in excess of 10 psia (70 kPa), said porous crystalline material having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1 sec−1 to about 20 sec−1 when measured at a temperature of 120° C.Type: GrantFiled: October 13, 2000Date of Patent: January 14, 2003Assignee: Exxon Mobil Chemical Patents, Inc.Inventors: Stephen H. Brown, Larry A. Green, Mark F. Mathias, David H. Olson, Robert A. Ware, William A. Weber, Reuel Shinnar
-
Patent number: 6504072Abstract: There is provided a process for the selective production of para-xylene which comprises reacting toluene with methanol in the presence of a catalyst comprising a porous crystalline material having a Diffusion Parameter for 2,2 dimethylbutane of about 0.1-15 sec−1 when measured at a temperature of 120° C. and a 2,2 dimethylbutane pressure of 60 torr (8 kPa). The porous crystalline material is preferably a medium-pore zeolite, particularly ZSM-5, which has been severely steamed at a temperature of at least 950° C. The porous crystalline material is preferably combined with at least one oxide modifier, preferably including phosphorus, to control reduction of the micropore volume of the material during the steaming step.Type: GrantFiled: May 8, 2002Date of Patent: January 7, 2003Assignee: ExxonMobil Oil CorporationInventors: Stephen H. Brown, Mark F. Mathias, Robert A. Ware, David H. Olson
-
Publication number: 20030004383Abstract: There is provided a process for the selective production of para-xylene which comprises reacting toluene with methanol in the presence of a catalyst comprising a porous crystalline material having a Diffusion Parameter for 2,2 dimethylbutane of about 0.1-15 sec−1 when measured at a temperature of 120° C. and a 2,2 dimethylbutane pressure of 60 torr (8 kPa). The porous crystalline material is preferably a medium-pore zeolite, particularly ZSM-5, which has been severely steamed at a temperature of at least 950° C. The porous crystalline material is preferably combined with at least one oxide modifier, preferably including phosphorus, to control reduction of the micropore volume of the material during the steaming step.Type: ApplicationFiled: May 8, 2002Publication date: January 2, 2003Inventors: Stephen H. Brown, Mark F. Mathias, Robert A. Ware, David H. Olson
-
Patent number: 6488741Abstract: A method of selectively adsorbing propylene in mixtures of propylene/propane and propylene/olefins through the use of zeolites having structures with a maximum of 8-member rings of tetraheda controlling the diffusion rate. Suitable zeolite adsorbents are those having the CHA and ITE structure types. Other 8-member ring zeolites, including aluminosilicates, with a Si:Al molar ratio of at least about 200 and having substantially no free acid are also suitable adsorbents.Type: GrantFiled: April 27, 2001Date of Patent: December 3, 2002Assignee: The Trustess of the University of PennsylvaniaInventor: David H. Olson
-
Publication number: 20020144597Abstract: A method of selectively adsorbing propylene in mixtures of propylene/propane and propylene/olefins through the use of zeolites having structures with a maximum of 8-member rings of tetraheda controlling the diffusion rate. Suitable zeolite adsorbents are those having the CHA and ITE structure types. Other 8-member ring zeolites, including aluminosilicates, with a Si:Al molar ratio of at least about 200 and having substantially no free acid are also suitable adsorbents.Type: ApplicationFiled: April 27, 2001Publication date: October 10, 2002Inventor: David H. Olson
-
Patent number: 6423879Abstract: There is provided a process for the selective production of para-xylene which comprises reacting toluene with methanol in the presence of a catalyst comprising a porous crystalline material having a Diffusion Parameter for 2,2 dimethylbutane of about 0.1-15 sec−1 when measured at a temperature of 120° C. and a 2,2 dimethylbutane pressure of 60 torr (8 kPa). The porous crystalline material is preferably a medium-pore zeolite, particularly ZSM-5, which has been severely steamed at a temperature of at least 950° C. The porous crystalline material is preferably combined with at least one oxide modifier, preferably including phosphorus, to control reduction of the micropore volume of the material during the steaming step.Type: GrantFiled: November 15, 1999Date of Patent: July 23, 2002Assignee: ExxonMobil Oil CorporationInventors: Stephen H. Brown, Mark F. Mathias, Robert A. Ware, David H. Olson
-
Patent number: 6232764Abstract: An electronic accessory assembly to be used with a host electronic instrument provides previously recorded data from a non-volatile memory as to the accessory's operational capabilities. This memory is accessed by a host device either when the host device is powered up, or when an new accessory is connected to the host device. The host device then uses this information along with the operational requirements of the user to set the operational parameters of the accessory/host combination to optimally perform the functions required by the user.Type: GrantFiled: June 12, 1998Date of Patent: May 15, 2001Assignee: Tektronix, Inc.Inventors: John B. Rettig, David H. Olson, Marvin E. LaVoie, Clifford E. Baker, Philip K. Jansen, Ray Zandonatti