Patents by Inventor David Brian Mitchell

David Brian Mitchell 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: 8062132
    Abstract: A disclosure of a subscription service is provided, where this service allows for the running of unsigned content, such as games, on closed computing systems, such as gaming consoles. The subscription service checks whether gamer tags have an account to run unsigned games on any consoles on which the gamer tags happen to be residing. If so, users associated with such gamer tags can run unsigned content; if not, then they cannot (but may be asked or allowed to subscribe to the service). The subscription service has various facets, some of which include: gamer tags that can interact with the service while being distributed across a plurality of consoles; remote location of the service from the gaming console; user privileges auditing and revocation if users associated with gamer tags violate policies set out by the subscription service, and so on.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: November 22, 2011
    Assignee: Microsoft Corporation
    Inventors: Ronnie Donnell Yates, Jr., Albert Sing Ho, Boyd Cannon Multerer, David Brian Mitchell
  • Publication number: 20080142447
    Abstract: Processes for the treatment of wastewater comprising incorporating a delaminated nanoparticulate clay into a treatment mixture to form a coagulant. The nanoparticulate clay comprises an anionic coagulant. Preferred nanoparticulate clays are bentonite clays and hectorite clays.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 19, 2008
    Inventors: David Brian MITCHELL, Gary Engstrom
  • Publication number: 20080139314
    Abstract: A disclosure of a subscription service is provided, where this service allows for the running of unsigned content, such as games, on closed computing systems, such as gaming consoles. The subscription service checks whether gamer tags have an account to run unsigned games on any consoles on which the gamer tags happen to be residing. If so, users associated with such gamer tags can run unsigned content; if not, then they cannot (but may be asked or allowed to subscribe to the service). The subscription service has various facets, some of which include: gamer tags that can interact with the service while being distributed across a plurality of consoles; remote location of the service from the gaming console; user privileges auditing and revocation if users associated with gamer tags violate policies set out by the subscription service, and so on.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 12, 2008
    Applicant: Microsoft Corporation
    Inventors: Ronnie Donnell Yates, Albert Sing Ho, Boyd Cannon Multerer, David Brian Mitchell
  • Patent number: 5977287
    Abstract: There is provided a composition comprising tannin containing hydroxyl groups which has been (a) chemically modified by reaction of at least one of said hydroxyl groups with at least one member selected from the group consisting of an esterification agent (e.g. acetic anhydride), etherification agent (e.g. dichloromethane or quaternary organic amine such as N-(3-chloro-2-hydroxypropyl) trimethyl ammonium chloride) to form the corresponding ester, or ether, through said hydroxyl group, and (b) derivatized. The chemically modified tannin is derivatized by reaction with aldehyhde (e.g. formaldehyde), or aldehyde and at least one member selected from the group consisting of ammonia and organic amine containing at least one primary or secondary nitrogen (e.g. cyclohexyl amine); said derivatized tannin being water soluble or dispersable at a pH below 7 and water insoluble at a pH above 7.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: November 2, 1999
    Assignee: BetzDearborn Inc.
    Inventors: David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai
  • Patent number: 5843337
    Abstract: There is provided a composition comprising tannin containing hydroxyl groups which has been (a) chemically modified by reaction of at least one of said hydroxyl groups with at least one member selected from the group consisting of an esterification agent (e.g. acetic anhydride), etherification agent (e.g. dichloromethane or quaternary organic amine such as N-(3-chloro-2-hydroxypropyl) trimethyl ammonium chloride) to form the corresponding ester, or ether, through said hydroxyl group, and (b) derivatized. The chemically modified tannin is derivatized by reaction with aldehyhde (e.g. formaldehyde), or aldehyde and at least one member selected from the group consisting of ammonia and organic amine containing at least one primary or secondary nitrogen (e.g. cyclohexyl amine); said derivatized tannin being water soluble or dispersable at a pH below 7 and water insoluble at a pH above 7.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: December 1, 1998
    Assignee: BetzDearborn Inc.
    Inventors: David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai
  • Patent number: 5830315
    Abstract: There is provided a composition comprising tannin containing hydroxyl groups which has been (a) chemically modified by reaction of at least one of said hydroxyl groups with at least one member selected from the group consisting of an esterification agent (e.g. acetic anhydride), etherification agent (e.g. dichloromethane or quaternary organic amine such as N-(3-chloro-2-hydroxypropyl) trimethyl ammonium chloride) to form the corresponding ester, or ether, through said hydroxyl group, and (b) derivatized. The chemically modified tannin is derivatized by reaction with aldehyhde (e.g. formaldehyde), or aldehyde and at least one member selected from the group consisting of ammonia and organic amine containing at least one primary or secondary nitrogen (e.g. cyclohexyl amine); said derivatized tannin being water soluble or dispersable at a pH below 7 and water insoluble at a pH above 7.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: November 3, 1998
    Assignee: BetzDearborn Inc.
    Inventors: David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M. Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai