Patents by Inventor David Stahl

David Stahl 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: 20260032148
    Abstract: A computer-implemented method performed at a processing server includes receiving, from a client device, a request to connect to an application server. The method further includes identifying a targeted application server from a set of application servers. The method further includes mapping a private internet protocol (IP) address for the targeted application server to a virtual IP (VIP) address associated with one or more demultiplexers. The method further includes generating a token based on a current secret key, wherein the token includes an indication of whether the token was generated using a static secret key or a particular dynamic secret key. The method further includes transmitting the VIP address, the private IP address, and the token to the client device.
    Type: Application
    Filed: September 30, 2025
    Publication date: January 29, 2026
    Applicant: Roblox Corporation
    Inventors: Ravi I. SINGH, Lan WEI, David STAHL
  • Patent number: 12410083
    Abstract: The present disclosure describes a microorganism support structure, including a gas-permeable layer comprising two opposing surfaces; a microorganism adhesive coats at least one surface of the gas-permeable layer; and a microorganism disposed on the microorganism adhesive-coated surface of the layer. The microorganism adhesive enhances the adhesion of the microorganism on the layer compared to a gas-permeable layer that does not have the microorganism adhesive.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: September 9, 2025
    Assignee: University of Washington
    Inventors: Bruce J. Godfrey, Mari-Karoliina Henriikka Winkler, David Stahl
  • Patent number: 12263193
    Abstract: Compositions and method for reducing the concentration of uremic toxins in the body of a patient suffering from some degree of kidney failure are disclosed. The methods can be used to delay the need for conventional dialysis treatment or as an adjunct therapy to reduce the frequency of dialysis sessions, and in some instances, as an alternative to such dialysis sessions.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: April 1, 2025
    Assignee: University of Washington
    Inventors: Paul Yager, Jonathan Himmelfarb, Mari-Karoliina Henriikka Winkler, Erin Heiniger, Sujatha Kumar, David Stahl, Bruce Godfrey
  • Publication number: 20240396931
    Abstract: A processing application stored on a processing server receives a request to join an application server from a client device. The processing application identifies a targeted application server from a set of application servers, a private internet protocol (IP) address for the targeted application server, and a port number associated with the targeted application server. The processing application generates a token based at least in part on the private IP address for the targeted application server. The processing application maps the private IP address to a virtual IP (VIP) address. The processing application transmits the VIP address, the private IP address, the port number, and the token to the client device.
    Type: Application
    Filed: August 5, 2024
    Publication date: November 28, 2024
    Applicant: Roblox Corporation
    Inventors: Brian PANE, Ravi I. SINGH, Lan WEI, David STAHL
  • Patent number: 12081585
    Abstract: A processing application stored on a processing server receives a request to join an application server from a client device. The processing application identifies a targeted application server from a set of application servers, a private internet protocol (IP) address for the targeted application server, and a port number associated with the targeted application server. The processing application generates a token based at least in part on the private IP address for the targeted application server. The processing application maps the private IP address to a virtual IP (VIP) address. The processing application transmits the VIP address, the private IP address, the port number, and the token to the client device.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: September 3, 2024
    Assignee: Roblox Corporation
    Inventors: Brian Pane, Ravi I. Singh, Lan Wei, David Stahl
  • Publication number: 20230308475
    Abstract: A processing application stored on a processing server receives a request to join an application server from a client device. The processing application identifies a targeted application server from a set of application servers, a private internet protocol (IP) address for the targeted application server, and a port number associated with the targeted application server. The processing application generates a token based at least in part on the private IP address for the targeted application server. The processing application maps the private IP address to a virtual IP (VIP) address. The processing application transmits the VIP address, the private IP address, the port number, and the token to the client device.
    Type: Application
    Filed: March 25, 2022
    Publication date: September 28, 2023
    Applicant: Roblox Corporation
    Inventors: Brian PANE, Ravi I. SINGH, Lan WEI, David STAHL
  • Publication number: 20230046027
    Abstract: The present disclosure describes a microorganism support structure, including a gas-permeable layer comprising two opposing surfaces; a microorganism adhesive coats at least one surface of the gas-permeable layer; and a microorganism disposed on the microorganism adhesive-coated surface of the layer. The microorganism adhesive enhances the adhesion of the microorganism on the layer compared to a gas-permeable layer that does not have the microorganism adhesive.
    Type: Application
    Filed: January 12, 2021
    Publication date: February 16, 2023
    Applicant: University of Washington
    Inventors: Bruce J. Godfrey, Mari-Karoliina Henriikka Winkler, David Stahl
  • Publication number: 20220000938
    Abstract: Compositions and method for reducing the concentration of uremic toxins in the body of a patient suffering from some degree of kidney failure are disclosed. The methods can be used to delay the need for conventional dialysis treatment or as an adjunct therapy to reduce the frequency of dialysis sessions, and in some instances, as an alternative to such dialysis sessions.
    Type: Application
    Filed: October 14, 2019
    Publication date: January 6, 2022
    Applicant: University of Washington
    Inventors: Paul Yager, Jonathan Himmelfarb, Mari-Karoliina Henriikka Winkler, Erin Heiniger, Sujatha Kumar, David Stahl, Bruce Godfrey
  • Publication number: 20190329496
    Abstract: A method for manufacturing a shim involves applying a pliable material onto a surface of a first piece; pressing a surface of a second piece against the surface of the first piece; curing the pliable material, resulting in a cured material; removing the cured material from the first piece; taking a three dimensional scan of the cured material; and manufacturing a shim based on the three dimensional scan.
    Type: Application
    Filed: May 10, 2019
    Publication date: October 31, 2019
    Inventors: Dhananjay Vasa, David Stahl
  • Publication number: 20120230673
    Abstract: A method of measuring accumulated chromatic dispersion in an optical data transmission network includes the following method steps: a) sending a first bit pattern with at least one first pulse at a first wavelength and a second bit pattern with at least one second pulse at a second wavelength over an optical fiber; b) receiving the first bit pattern and the second bit pattern; c) determining a relative temporal shift between the first bit pattern and the second bit pattern; and d) calculating the accumulated chromatic dispersion from the relative temporal shift.
    Type: Application
    Filed: November 3, 2009
    Publication date: September 13, 2012
    Inventors: Arne Striegler, David Stahl, Lutz Rapp
  • Patent number: 7995918
    Abstract: A method and apparatus for a monitoring technique for the rate of change of polarization state and of the polarization mode dispersion is proposed. This technique is used for performance monitoring and fault correlation as well as for the verification of commitments to customers with respect to the transmission system's tolerance to polarization mode dispersion.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 9, 2011
    Assignee: Alcatel Lucent
    Inventors: Lutz Raddatz, David Stahl
  • Publication number: 20080101799
    Abstract: A method and apparatus for a monitoring technique for the rate of change of polarization state and of the polarization mode dispersion is proposed. This technique is used for performance monitoring and fault correlation as well as for the verification of commitments to customers with respect to the transmission system's tolerance to polarization mode dispersion.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 1, 2008
    Inventors: Lutz Raddatz, David Stahl
  • Publication number: 20070175567
    Abstract: A tire manufacturing assembly line is disclosed which can be reconfigured for making different types of tires in shorter runs. The assembly line can interchangeably use components from centralized preparation or integrated preparation, and interchangeably use storage reels of any form from the centralized preparation.
    Type: Application
    Filed: November 10, 2005
    Publication date: August 2, 2007
    Inventor: David Stahl
  • Patent number: 7233399
    Abstract: The invention proposes a method for feedback control, in which a portion of a data signal is split and rectified and the signal intensity is detected with slow speed electronics for improving the control of a delay line interferometer (DLI) used in optical data transmission. A control signal is generated and fed back to the DLI based on the detected signal intensity. The invention further proposes a device provided with a DLI, a first and second optoelectronic component, and a differential amplifier.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: June 19, 2007
    Assignee: Lucent Technologies Inc.
    Inventors: Ralph Schlenk, David Stahl
  • Publication number: 20050088659
    Abstract: The invention proposes a method for feedback control, in which a portion of a data signal is split and rectified and the signal intensity is detected with slow speed electronics for improving the control of a delay line interferometer (DLI) used in optical data transmission. A control signal is generated and fed back to the DLI based on the detected signal intensity. The invention further proposes a device provided with a DLI, a first and second optoelectronic component, and a differential amplifier.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 28, 2005
    Inventors: Ralph Schlenk, David Stahl