Donald Bertrand Bivin

7432371, Oct 7, 2008

Feb 7, 2003

10/359894

Joshua W. Kriesel - San Francisco CA, US
Timothy B. Karpishin - Castro Valley CA, US
Donald B. Bivin - Oakland CA, US
Grant Merrill - San Francisco CA, US
Martin S. Edelstein - Foster City CA, US
Thomas H. Smith - San Carlos CA, US
Jeffery A. Whiteford - Belmont CA, US
Robert T. Jonas - Palo Alto CA, US
Mark Micklatcher - Hayward CA, US
Serena Joshi - San Jose CA, US

Covalent Partners, LLC - Hayward CA

C07D 291/00

540474, 540460, 540467, 540471, 544238, 544294, 544333

Nanofilms useful for filtration are prepared from oriented amphiphilic molecules and oriented macrocyclic modules. The amphiphilic species may be oriented on an interface or surface. The nanofilm may be prepared by depositing or attaching an oriented layer to a substrate. A nanofilm may also be prepared by coupling the oriented macrocyclic modules to provide a membrane.

7481244, Jan 27, 2009

May 24, 2007

11/807158

Donald B. Bivin - Oakland CA, US

BioQuiddity, Inc. - San Francisco CA

F15D 1/00

138 37, 138 39, 366337

A flow control device of the character having a fluid pathway for permitting fluid flow therealong under conditions of varying temperature and pressure for achieving substantially constant output flow rate from the fluid pathway. One or more flexibly deformable vanes, which extend into the fluid pathway, are constructed and arranged to flexibly deform in a manner to further occlude the fluid pathway when the pressure within said fluid path way increases.

7513273, Apr 7, 2009

Jan 7, 2008

12/008159

Donald B. Bivin - Oakland CA, US

BioQuiddity, Inc. - San Francisco CA

F15D 1/00

138 37, 138 39, 366337

A flow control device having no moving parts that controls fluid flow along a fluid pathway in such a way that flow rate remains constant irregardless of environmental changes. The device achieves a constant flow rate by taking advantage of the properties of the fluid moving along the fluid pathway and maintains the constant flow rate irregardless of changes in viscosity due to changes in temperature.

7563890, Jul 21, 2009

Aug 18, 2005

11/207383

Timothy B. Karpishin - Castro Valley CA, US
Josh Kriesel - San Francisco CA, US
Grant Merrill - San Francisco CA, US
Donald B. Bivin - Oakland CA, US
Thomas H. Smith - San Carlos CA, US
Martin Stuart Edelstein - Foster City CA, US

Covalent Partners, LLC - Hayward CA

C07D 487/00
C07D 491/00
C07D 513/00

540476

Certain amphiphilic modules comprising 3-24 synthons are provided herein. Each synthon is independently selected from aryl, heteroaryl, alicyclic, and heteroalicyclic substituents, wherein each synthon selected is bonded to the next through a linker to form a closed ring that defines a nanopore. One or more lipophilic moieties and one or more hydrophilic moieties are bonded to one or more of the synthons, resulting in the formation of the desired amphiphilic modules. Those modules may be subsequently linked to one another to form two-dimensional close-packed planar arrays, referred to as nanomembranes. Nanomembranes may be useful in filtering certain ionic species from a solution. Selective passage of particular species is determined, in part, by the size of the module's nanopore and the nature of the lipophilic/hydrophobic species attached thereto. Also provided are methods of making and using amphiphilic modules and nanomembranes.

7595368, Sep 29, 2009

Aug 10, 2005

11/202322

Joshua W. Kriesel - San Francisco CA, US
Donald B. Bivin - Oakland CA, US
David J. Olson - San Francisco CA, US
Jeremy J. Harris - San Mateo CA, US

Covalent Partners, LLC - Hayward CA

C08F 4/00
C08F 28/06
C08F 24/00
C08F 14/14

526201, 5263481, 526202, 526203, 526280, 526256, 526266, 526291

Nanoflims useful for filtration are prepared from amphiphilic species and one or more polymeric components. The amphiphilic species or components may be oriented on an interface or surface. A nanofilm may be prepared by coupling one or more of the components. The nanofilm may also be deposited or attached to a substrate.

7694938, Apr 13, 2010

Feb 13, 2006

11/353598

Marshall S. Kriesel - Saint Paul MN, US
Joshua W. Kriesel - San Francisco CA, US
Alan D. Langerud - Saint Paul MN, US
Donald B Bivin - Oakland CA, US

BioQuiddity, Inc. - San Francisco CA

F16K 5/10

251208, 137385, 137556

A distal rate control device, which can be conveniently interposed between a fluid supply line and fluid delivery line for precisely controlling the rate of fluid flow toward the delivery line. The device includes a readily adjustable flow rate control device having a novel flow control plate that can be placed in fluid communication with the fluid supply line and with the fluid delivery line. The flow control plate is provided with a plurality of elongated fluidic flow control channels that are in communication with a rate selector member that is rotatably carried by the device housing. Rotation of the rate selector member places a selected one of the flow control channels in communication with the fluid delivery line.

7735522, Jun 15, 2010

Apr 6, 2009

12/384635

Donald B. Bivin - Oakland CA, US
Joshua W. Kriesel - San Francisco CA, US

BioQuiddity, Inc. - San Francisco CA

F15D 1/00

138 37, 138 39, 366337

A flow control device that is uniquely capable of providing uniform flow under changing environmental conditions of temperature and pressure. The device achieves flow rate stabilization by taking advantage of the properties of the moving fluid in a channel with eddy currents that are generated as fluid moves past obstacles located in the fluid flow path. The shape and magnitude of such eddies depend on the viscosity of the fluid. Additionally, the device can also simultaneously stabilize the fluid flow rate under varying pressure by using a strategically positioned, yieldably deformable elastomeric membrane. Therefore, the invention uniquely combines two devices into one novel fluidic device that can stabilize a flow rate under simultaneously changing temperatures and pressures.

7767810, Aug 3, 2010

Aug 8, 2005

11/199913

Joshua W. Kriesel - San Francisco CA, US
Timothy B. Karpishin - Castro Valley CA, US
Donald B. Bivin - Oakland CA, US
Grant Merrill - San Francisco CA, US
Martin S. Edelstein - Foster City CA, US
Thomas H. Smith - San Carlos CA, US
Jeffery A. Whiteford - Belmont CA, US
Robert T. Jonas - Palo Alto CA, US

Covalent Partners, LLC - Hayward CA

C07D 487/00

540471

Certain macrocyclic modules comprising 3-24 synthons are provided herein. Each synthon is independently selected from cyclic substituents, wherein each synthon selected is bonded to the next through a linker to form a closed ring that defines a pore. One or more lipophilic moieties and one or more hydrophilic moieties are bonded to one or more of the synthons, resulting in the formation of the desired macrocyclic modules. Those modules may be subsequently linked to one another to form selectively-permeable membranes. Membranes comprising macrocyclic modules may be useful in filtering certain molecular species from a solution. Selective passage of particular species is determined, in part, by the size of the module's pore and the nature of the lipophilic/hydrophobic species attached thereto. Also provided are methods of making and using macrocyclic modules and membranes.