Patent application number | Description | Published |
20090092530 | METHOD FOR TREATMENT OF A GAS STREAM CONTAINING SILICON TETRAFLUORIDE AND HYDROGEN CHLORIDE - The present invention is directed to a method for treatment of a gas stream comprising silicon tetrafluoride and hydrogen chloride. For example, the present invention is directed to a method for treatment of such a gas stream that involves contacting the gas stream with a metal that reacts with the hydrogen chloride to provide a treated gas stream having reduced hydrogen chloride content. The present invention is further directed to methods for subjecting silicon tetrafluoride and hydrogen chloride-containing gas streams to elevated pressure to provide gas streams suitable for transport. | 04-09-2009 |
20090092534 | PROCESSES FOR PURIFICATION OF SILICON TETRAFLUORIDE - Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts. | 04-09-2009 |
20090324479 | FLUIDIZED BED REACTOR SYSTEMS AND METHODS FOR REDUCING THE DEPOSITION OF SILICON ON REACTOR WALLS - Gas distribution units of fluidized bed reactors are configured to direct thermally decomposable compounds to the center portion of the reactor and away from the reactor wall to prevent deposition of material on the reactor wall and process for producing polycrystalline silicon product in a reactor that reduce the amount of silicon which deposits on the reactor wall. | 12-31-2009 |
20090324819 | METHODS FOR INCREASING POLYCRYSTALLINE SILICON REACTOR PRODUCTIVITY BY RECYCLE OF SILICON FINES - Processes for producing polycrystalline silicon include contacting silicon particles with a thermally decomposable silicon compound in a reaction chamber. A portion of the silicon decomposable compound decomposes to produce silicon dust which is discharged from and reintroduced into the reaction chamber. The discharged silicon dust agglomerates with the silicon particles. | 12-31-2009 |
20100009843 | PROCESSES FOR PREPARING A CATALYST - Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts. | 01-14-2010 |
20100009844 | CATALYSTS USEFUL IN THE PURIFICATION OF SILICON TETRAFLUORIDE - Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts. | 01-14-2010 |
20100178225 | METHOD FOR TREATMENT OF A GAS STREAM CONTAINING SILICON TETRAFLUORIDE AND HYDROGEN CHLORIDE - The present invention is directed to a method for treatment of a gas stream comprising silicon tetrafluoride and hydrogen chloride. For example, the present invention is directed to a method for treatment of such a gas stream that involves contacting the gas stream with a metal that reacts with the hydrogen chloride to provide a treated gas stream having reduced hydrogen chloride content. The present invention is further directed to methods for subjecting silicon tetrafluoride and hydrogen chloride-containing gas streams to elevated pressure to provide gas streams suitable for transport. | 07-15-2010 |
20110244124 | METHODS FOR PRODUCING POLYCRYSTALLINE SILICON THAT REDUCE THE DEPOSITION OF SILICON ON REACTOR WALLS - Gas distribution units of fluidized bed reactors are configured to direct thermally decomposable compounds to the center portion of the reactor and away from the reactor wall to prevent deposition of material on the reactor wall and process for producing polycrystalline silicon product in a reactor that reduce the amount of silicon which deposits on the reactor wall. | 10-06-2011 |
20120230903 | METHODS FOR INTRODUCTING A FIRST GAS AND A SECEOND GAS INTO A REACTION CHAMBER - Gas distribution units of fluidized bed reactors are configured to direct thermally decomposable compounds to the center portion of the reactor and away from the reactor wall to prevent deposition of material on the reactor wall and process for producing polycrystalline silicon product in a reactor that reduce the amount of silicon which deposits on the reactor wall. | 09-13-2012 |
Patent application number | Description | Published |
20080209515 | Location attestation service - In one embodiment a computer system comprises a processor and a memory module coupled to the processor and comprising logic instructions stored in a computer readable medium. The logic instructions, when executed, configure the processor to initiate, in a client computing device, a service request, in response to the service request, initiate a request for a location attestation certificate, and complete the client service request when the location attestation certificate is granted. | 08-28-2008 |
20080270781 | Secure compter system update - In one embodiment a computer system, comprises a processor, a trusted platform module comprising at least one platform configuration register, a basic input/output system, and logic to unseal at least one current key in the trusted platform module, initiate an update to the basic input/output system, obtain, with the update, at least a component of one expected value for a platform configuration register in the trusted platform module, seal at least one key using the at least one expected value for a platform configuration register, and install the basic input/output system update. | 10-30-2008 |
Patent application number | Description | Published |
20080263672 | Protecting sensitive data intended for a remote application - A method and apparatus is provided of protecting sensitive data input via an input device of a processing platform from a data logger, the sensitive data being user account data intended for a remote application. To protect the sensitive data, the data is used as a password in a secure, password-authenticated key agreement protocol executed between a security entity and the remote application, the security entity being installed in the input device or in secure communication therewith. In one preferred embodiment the input device is a keyboard and the security entity is a unit installed in the keyboard and selectively operable in a pass-through mode and a security mode. | 10-23-2008 |
20090193507 | AUTHENTICATION MESSAGING SERVICE - In one embodiment an authentication server comprises one or more processors, and a memory module communicatively connected to the one or more processors. The memory module and comprises logic instructions which, when executed on the one or more processors configure the one or more processors to regulate access to a service in a communication network by performing operations, comprising receiving, in the authentication server, a first authentication token request for an authentication token, wherein the first authentication token request uniquely identifies a client computing device and a unique service, processing, in the authentication server, the first authentication token request, and transmitting an authentication token from the authentication token server to the client computing device when the first authentication token request is approved by the authentication server. | 07-30-2009 |
Patent application number | Description | Published |
20080235505 | METHODS AND SYSTEMS TO SELECTIVELY SCRUB A SYSTEM MEMORY - A computer system is provided, the computer system having a processor and a system memory coupled to the processor. The computer system also includes a Basic Input/Output System (BIOS) in communication with the processor. The BIOS selectively scrubs the system memory during a shutdown process of the computer system. | 09-25-2008 |
20080271015 | VIRTUAL MACHINE CONTROL - A method comprises receiving a request for data from a client computer. The method further comprises obtaining an identifier of a virtual machine. The virtual machine identifier is associated with the requested data. The method further comprises providing the virtual machine identifier to the client computer. | 10-30-2008 |
20090036096 | USING AN AUTHENTICATION TICKET TO INITIALIZE A COMPUTER - A method comprises authenticating a wireless communication device, receiving an authentication ticket from a server if the wireless communication device is successfully authenticated, and providing the authentication ticket by the wireless communication device to a computer to enable the computer complete an initialization process. | 02-05-2009 |
20100062744 | RETRIEVING DATA WIRELESSLY FROM A MOBILE DEVICE - A system comprises a processing device including a storage device. The system further comprises a wireless mobile device (“WMD”) in wireless communication with the processing device. The processing device registers the WMD and stores the registration in the system memory, receives a request for retrieval of data located in the WMD, authenticates the request based on the registration, and retrieves the data wirelessly based on the authentication. | 03-11-2010 |
20100287315 | Shared Secret Used Between Keyboard And Application - A system comprises a processor which executes an operating system and an application. The system also comprises a keyboard coupled to the processor. The keyboard and application share a shared secret that is used to encode keyboard data provided from the keyboard to the application. The shared secret is not known or accessible to the operating system. | 11-11-2010 |
20110093693 | BINDING A CRYPTOGRAPHIC MODULE TO A PLATFORM - One embodiment is a computer system having firmware that shares a secret with a cryptographic co-processor to determine if the cryptographic co-processor has been tampered with or removed from the computer system. | 04-21-2011 |
20110280402 | METHODS AND SYSTEMS FOR UTILIZING CRYPTOGRAPHIC FUNCTIONS OF A CRYPTOGRAPHIC CO-PROCESSOR - A computer platform is provided that comprises a processor and a cryptographic co-processor coupled to the processor. The computer platform further comprises a platform entity coupled to the processor. The platform entity establishes a secure relationship with the cryptographic co-processor that enables the platform entity to utilize cryptographic functions provided by the cryptographic co-processor. | 11-17-2011 |