1
David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai: Treatment of Aqueous systems using a chemically modified tannin. BetzDearborn, Alexander D Ricci, Philip H Von Neida, November 3, 1998: US05830315 (5 worldwide citation)

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 ...


2
David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai: Treatment of aqueous systems using a chemically modified tannin. BetzDearborn, Philip H Von Neida, November 2, 1999: US05977287 (4 worldwide citation)

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 ...


3
David Brian Mitchell, Ralph Lemmel Minnis, Thomas Peter Curran, Steven M Deboo, John Arthur Kelly, Rashmi Patwardhan, Wun Ten Tai: Treatment of aqueous systems using a chemically modified tannin. BetzDearborn, Alexander D Ricci, Philip H Von Neida, December 1, 1998: US05843337 (3 worldwide citation)

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 ...


4
Ronnie Donnell Yates Jr, Albert Sing Ho, Boyd Cannon Multerer, David Brian Mitchell: Subscription based services for closed computing systems. Microsoft Corporation, Woodcock Washburn, November 22, 2011: US08062132

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 th ...


5
David Brian MITCHELL, Gary Engstrom: Method of treating wastewater. The Boc Group, June 19, 2008: US20080142447-A1

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.


6
Ronnie Donnell Yates, Albert Sing Ho, Boyd Cannon Multerer, David Brian Mitchell: Subscription based services for closed computing systems. Microsoft Corporation, Woodcock Washburn, June 12, 2008: US20080139314-A1

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 th ...