Patents by Inventor Walter Luh

Walter Luh 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: 10831286
    Abstract: In one embodiment, a method includes receiving light signals from an interaction device, where the captured light signals are processed into one or more images that include illumination patterns associated with one or more objects, accessing light signals only within a particular spectrum range, detecting one or more tracking patterns from the accessed light signals within the particular spectrum range, where each of the one or more tracking patterns indicates a particular portion of a first object, and where the first object is a part of the one or more objects, determining one or more characteristics of the first object based on the detected one or more tracking patterns, and sending one or more content items and instructions causing a projector to project the one or more content items on the first object to the interaction device.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: November 10, 2020
    Assignee: Facebook, Inc.
    Inventors: Samuel Franklin Pepose, Walter Luh, Alexander Mortimer, Rajesh Prasannavenkatesan
  • Patent number: 8940951
    Abstract: A process for preparing isobutene by dissociation of MTBE, including: a) reaction of isobutene-containing hydrocarbon mixtures, with methanol, present in one or more methanol-containing streams, over acidic ion exchangers to give a stream, containing MTBE and TBA; b) separation of a stream containing MTBE and TBA, from a stream by distillation; c) dissociation of a stream in the gas phase over a heterogeneous catalyst to give a stream containing at least isobutene, methanol, MTBE and water and possibly TBA, d) separation of a stream by distillation to give a stream containing in each case more than 50% by mass of the amounts of methanol, TBA and water present in another stream and a stream containing isobutene, e) separation of water from stream to below 1% by mass by distillation to give a stream, f) total or partial recirculation of the methanol-containing stream.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: January 27, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Markus Winterberg, Dirk Roettger, Armin Rix, Reiner Bukohl, Walter Luh, Holger Wiederhold, Gunnar Schilling, Christian Boeing
  • Patent number: 8633345
    Abstract: A process for preparing isobutene including cleaving a mixture obtained from an MTBE-containing feedstock and/or an MTBE-containing stream, affording a stream of reaction products consisting of isobutene, methanol, MTBE and by-products, the latter consisting of a1) high boilers having a boiling range above 55° C. at a pressure of 0.1 MPa; a2) medium boilers having a boiling range of 12 to 55° C. at a pressure of 0.1 MPa; and a3) low boilers having a boiling range below 12° C. at a pressure of 0.1 MPa; distillatively separating into a stream which contains the isobutene product and low boilers, and a stream which contains MTBE, methanol, medium boilers and high boilers; distillatively separating to obtain an MTBE-containing stream and a methanol-containing high boiler stream; recycling an MTBE-containing stream in which the medium boilers being removed completely or partially before recycling.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: January 21, 2014
    Assignee: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Dirk Roettger, Rainer Bukohl, Holger Wiederhold, Walter Luh
  • Publication number: 20120142985
    Abstract: The invention relates to a method for producing isobutene by cracking MTBE, wherein the following steps are carried out: a) MTBE synthesis; reacting isobutene-containing hydrocarbon mixtures (II) with methanol (III), contained in one or more methanol-containing streams (VIII, IX), on acidic ion exchangers obtaining a stream (IV) containing MTBE and TBA, b) MTBE separation; separating a stream (V) containing MTBE and TBA from stream (IV) by means of distillation, c) MTBE cracking; cracking the stream (V) on a heterogenic catalyst in the gas phase, thus obtaining a stream (VI) which contains at least isobutene, methanol, MTBE, water, and optionally TBA, d) isobutene separation; separating the stream (VI) by means of distillation, thus obtaining a stream (VII) containing more than 50 mass % of the amounts of methanol, TBA, and water contained in stream (VI), and a stream (XVII) containing isobutene, e) water separation; separating, water from the stream (VII) to below 1 mass % by means of distillation, thus obta
    Type: Application
    Filed: June 16, 2010
    Publication date: June 7, 2012
    Applicant: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Dirk Roettger, Armin Rix, Reiner Bukohl, Walter Luh, Holger Wiederhold, Gunnar Schilling, Christian Boeing
  • Publication number: 20120090021
    Abstract: Disclosed are new approaches for building an application for a specific platform. Source code files may be compiled to an intermediate module and transmitted to a build server along with metadata describing a target operating environment. The build server selects an application template including an application shell suitable for the target operating environment. The application shell may be bound to the intermediate module by modifying the application shell to verify a signature of the intermediate module prior to executing it. The application shell may include a binary executable for executing the intermediate module in the target environment. Also disclosed is an approach for providing access to an application on a subscription or trial basis.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 12, 2012
    Applicant: Ansca, Inc.
    Inventors: Walter Luh, Sean M. Head
  • Publication number: 20120089733
    Abstract: Disclosed are new approaches for building an application for a specific platform. Source code files may be compiled to an intermediate module and transmitted to a build server along with metadata describing a target operating environment. The build server selects an application template including an application shell suitable for the target operating environment. The application shell may be bound to the intermediate module by modifying the application shell to verify a signature of the intermediate module prior to executing it. The application shell may include a binary executable for executing the intermediate module in the target environment. Also disclosed is an approach for providing access to an application on a subscription or trial basis.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 12, 2012
    Applicant: Ansca, Inc.
    Inventors: WALTER LUH, Sean M. Head
  • Patent number: 8126280
    Abstract: Enhanced decompression of compressed images, in which a decompressed image with a target resolution is assembled using an iteratively decompressed and downscaled quantity of scanlines of a compressed image, the quantity of scanlines correlating to a downscaling factor determined based on an original resolution of the compressed image and the target resolution.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: February 28, 2012
    Assignee: Adobe Systems Incorporated
    Inventors: Walter Luh, Samuli Tapio Kekki
  • Patent number: 8032388
    Abstract: A source sampling rate is associated with first or second groups of sampling rates. A playback rate is determined by: (a) selecting the source sampling rate if the source sampling rate is supported by a playback environment; (b) otherwise if there is a highest first rate from the first or second groups of playback sampling rates which is supported by the playback environment and is lower than the source sampling rate, selecting the first rate; (c) otherwise if there is a slowest second rate from the group that the source sampling rate is associated with that is supported by the playback environment and is higher than the source sampling rate, selecting the second rate; (d) otherwise selecting the slowest sampling rate supported by the playback environment from the group that the source sampling rate is not associated with as the playback rate.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: October 4, 2011
    Assignee: Adobe Systems Incorporated
    Inventors: Walter Luh, David Knight
  • Patent number: 7968758
    Abstract: A process for the dissociation of methyl tert-butyl ether (MTBE), which includes at least a) catalytic dissociation of MTBE which is present in two streams I and VII over a catalyst to give a dissociation product II, b) separation by distillation of the dissociation product II obtained in a) into an overhead stream III containing more than 90% by mass and a bottom stream IV containing diisobutene, MTBE and more than 80% of the methanol present in the dissociation product II, c) separation by distillation of the bottom stream IV obtained in b) into a methanol-containing bottom stream V, a side stream VI containing diisobutene, methanol and MTBE and an overhead stream VII containing MTBE and methanol and d) recirculation of the overhead stream VII to a).
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Franz Nierlich, Silvia Santiago Fernandez, Walter Luh, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
  • Publication number: 20110118523
    Abstract: A process for preparing isobutene from MTBE-containing mixtures, including: a) in a reactor, cleaving a mixture obtained from an MTBE-containing feedstock and/or an MTBE-containing stream, affording a stream of reaction products including isobutene, methanol, MTBE, and by-products, which are a1) high boilers having a boiling range above 55° C. at a pressure of 0.1 MPa, a2) medium boilers having a boiling range of 12 to 55° C. at a pressure of 0.1 MPa, and a3) low boilers having a boiling range below 12° C. at a pressure of 0.1 MPa; b) distillatively separating stream into a stream which contains the isobutene product and low boilers, and a stream which contains MTBE, methanol, medium boilers and high boilers; c) distillatively separating stream to obtain an MTBE-containing stream and a methanol-containing high boiler stream; and d) recycling an MTBE-containing stream into a) of the process, the medium boilers being removed completely or partially before d) from the streams rich in medium boilers.
    Type: Application
    Filed: May 19, 2009
    Publication date: May 19, 2011
    Applicant: Evonik Oxeno Gmbh
    Inventors: Markus Winterberg, Dirk Roettger, Rainer Bukohl, Holger Wiederhold, Walter Luh
  • Patent number: 7919662
    Abstract: Isobutene is prepared by dissociation of MTBE in the gas phase, by a) fractional distillation of an MTBE-containing stream comprising feed MTBE (I) and a recycle stream (VIII) to give an MTBE-containing overhead stream (II) and a bottom stream (III) having a boiling point higher than MTBE, b) catalytic dissociation of the overhead stream (II) obtained in step a) to give a dissociation product (IV), c) separation by distillation of the dissociation product (IV) obtained in step b) into an overhead stream (V) comprising more than 90% by mass of isobutene and a bottom stream (VI) comprising diisobutene, MTBE and more than 50% of the methanol present in the dissociation product (IV), d) fractional distillation of the bottom stream obtained in step c) under conditions under which the methanol is obtained as bottom product (VII) and more than 99% of the MTBE is obtained in the overhead product (VIII), and e) recirculation of the overhead product (VIII) to step a).
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: April 5, 2011
    Assignee: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
  • Patent number: 7910786
    Abstract: Isobutene is prepared by a process in which a) an MTBE-containing stream I is separated by distillation into an MTBE-containing overhead stream II and a bottom stream III which comprises compounds having boiling points higher than that of MTBE; and b) the MTBE present in the overhead stream II is dissociated over a catalyst to give a dissociation product IV; wherein the stream I has a proportion of 2-methoxybutane (MSBE) of greater than 1000 ppm by mass, based on MTBE, and wherein the separation by distillation in step a) and/or the dissociation in step b) is carried out so that the dissociation product IV has a concentration of less than 1000 ppm by mass of linear butenes, based on a C4-olefin fraction.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: March 22, 2011
    Assignee: Evonik Oxeno GmbH
    Inventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Büschken
  • Publication number: 20090080784
    Abstract: Enhanced decompression of compressed images, in which a decompressed image with a target resolution is assembled using an iteratively decompressed and downscaled quantity of scanlines of a compressed image, the quantity of scanlines correlating to a downscaling factor determined based on an original resolution of the compressed image and the target resolution.
    Type: Application
    Filed: December 31, 2007
    Publication date: March 26, 2009
    Applicant: Adobe Systems Incorporated
    Inventors: Walter Luh, Samuli Tapio Kekki
  • Publication number: 20080058570
    Abstract: Isobutene is prepared by a process in which a) an MTBE-containing stream I is separated by distillation into an MTBE-containing overhead stream II and a bottom stream III which comprises compounds having boiling points higher than that of MTBE; and b) the MTBE present in the overhead stream II is dissociated over a catalyst to give a dissociation product IV; wherein the stream I has a proportion of 2-methoxybutane (MSBE) of greater than 1000 ppm by mass, based on MTBE, and wherein the separation by distillation in step a) and/or the dissociation in step b) is carried out so that the dissociation product IV has a concentration of less than 1000 ppm by mass of linear butenes, based on a C4-olefin fraction.
    Type: Application
    Filed: August 16, 2007
    Publication date: March 6, 2008
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Bueschken
  • Publication number: 20080058569
    Abstract: A process for the dissociation of methyl tert-butyl ether (MTBE), which includes at least a) catalytic dissociation of MTBE which is present in two streams I and VII over a catalyst to give a dissociation product II, b) separation by distillation of the dissociation product II obtained in a) into an overhead stream III containing more than 90% by mass and a bottom stream IV containing diisobutene, MTBE and more than 80% of the methanol present in the dissociation product II, c) separation by distillation of the bottom stream IV obtained in b) into a methanol-containing bottom stream V, a side stream VI containing diisobutene, methanol and MTBE and an overhead stream VII containing MTBE and methanol and d) recirculation of the overhead stream VII to a).
    Type: Application
    Filed: June 5, 2007
    Publication date: March 6, 2008
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Markus Winterberg, Franz Nierlich, Silvia Santiago Fernandez, Walter Luh, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Buschken
  • Publication number: 20080058572
    Abstract: A continuous process for preparing an isoolefin having 4 to 6 carbon atoms is performed by cleaving a compound of the formula I R1—O—R2 ??(I) wherein R1=a tertiary alkyl radical having 4 to 6 carbon atoms, and R2=H or an alkyl radical, in a gas phase over a solid catalyst, in the temperature range of 200 to 400° C., at a pressure of 0.1 to 1.2 MPa, in a reactor which is equipped with a heating jacket and is heated with a liquid heat carrier, wherein the cleavage is carried out in such a way that a temperature drop in the catalyst zone at any point in relation to the entrance temperature is less than 50° C., wherein (i) a reaction mixture in the reactor and (ii) the heat carrier in the jacket flow through the reactor in cocurrent, and wherein a temperature difference of the heat carrier between a feed point to the reactor and an outlet from the reactor is adjusted to less than 40° C.
    Type: Application
    Filed: August 16, 2007
    Publication date: March 6, 2008
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Silvia Santiago Fernandez, Markus Winterberg, Franz Nierlich, Stephan Houbrechts, Horst-Werner Zanthoff, Wilfried Bueschken, Walter Luh, Georg Skillas
  • Publication number: 20080058575
    Abstract: Isobutene is prepared by dissociation of MTBE in the gas phase, by a) fractional distillation of an MTBE-containing stream comprising feed MTBE (I) and a recycle stream (VIII) to give an MTBE-containing overhead stream (II) and a bottom stream (III) having a boiling point higher than MTBE, b) catalytic dissociation of the overhead stream (II) obtained in step a) to give a dissociation product (IV), c) separation by distillation of the dissociation product (IV) obtained in step b) into an overhead stream (V) comprising more than 90% by mass of isobutene and a bottom stream (VI) comprising diisobutene, MTBE and more than 50% of the methanol present in the dissociation product (IV), d) fractional distillation of the bottom stream obtained in step c) under conditions under which the methanol is obtained as bottom product (VII) and more than 99% of the MTBE is obtained in the overhead product (VIII), and e) recirculation of the overhead product (VIII) to step a).
    Type: Application
    Filed: August 14, 2007
    Publication date: March 6, 2008
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Markus Winterberg, Walter Luh, Silvia Santiago Fernandez, Franz Nierlich, Stephan Houbrechts, Dietrich Maschmeyer, Horst-Werner Zanthoff, Wilfried Buschken