James Andrew Larson

6465041, Oct 15, 2002

Dec 19, 2001

10/028586

Joseph William Frisk - Oakdale MN
Wayne Meredith Boand - Lino Lakes MN
James Michael Larson - Saint Paul MN

3M Innovative Properties Company - Saint Paul MN

B05D 128

427228, 427358, 427359, 427365

A method is provided for making a gas diffusion layer for an electrochemical cell comprising the steps of: a) combining carbon particles and one or more surfactants in a typically aqueous vehicle to make a preliminary composition, typically by high shear mixing; b) adding one or more highly fluorinated polymers to said preliminary composition by low shear mixing to make a coating composition; and c) applying the coating composition to an electrically conductive porous substrate, typically by a low shear coating method.

6703068, Mar 9, 2004

Dec 19, 2001

10/027608

Klaus Hintzer - Kastl, DE
Armin Steurer - Tittmoning, DE
Dieter Birkhorst - Altötting, DE
James Michael Larson - Saint Paul MN
Joseph William Frisk - Oakdale MN
Wayne Meredith Boand - Lino Lakes MN

3M Innovative Properties Company - Saint Paul MN

B05D 512

427115, 427180, 4273722, 427205

An aqueous coating composition is provided comprising carbon particles, one or more highly fluorinated polymers and one or more amine oxide surfactants, typically an amine oxide surfactant according to formula I: where n is 9 to 19. The coating composition is advantageously used in a method of making a gas diffusion layer for an electrochemical cell comprising the steps of: a) coating a electrically conductive porous substrate with the aqueous coating composition, and b) heating the electrically conductive porous substrate to a temperature sufficient to decompose the amine oxide surfactants. In another aspect, a gas diffusion layer for an electrochemical cell is provided which is advantageously free of surfactant.

7838138, Nov 23, 2010

Sep 19, 2005

11/230091

James M. Larson - Saint Paul MN, US
Phat T. Pham - Little Canada MN, US
Matthew H. Frey - Cottage Grove MN, US
Steven J. Hamrock - Stillwater MN, US
Gregory M. Haugen - Edina MN, US
William M. Lamanna - Stillwater MN, US

3M Innovative Properties Company - St. Paul MN

H01M 8/10

429 33, 429 12, 429 30, 429 42, 429309, 521 27, 204263, 204296

The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.

8323809, Dec 4, 2012

Sep 15, 2010

12/882310

James M. Larson - Saint Paul MN, US
Phat T. Pham - Little Canada MN, US
Matthew H. Frey - Cottage Grove MN, US
Steven J. Hamrock - Stillwater MN, US
Gregory M. Haugen - Edina MN, US
William M. Lamanna - Stillwater MN, US

3M Innovative Properties Company - St. Paul MN

H01M 8/10

429 33, 429 12, 429 30, 429 42, 429309, 521 27, 204263, 204296

The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.

20030134178, Jul 17, 2003

Dec 21, 2001

10/028173

James Larson - Saint Paul MN, US

3M Innovative Properties Company

H01M004/88
B05D005/12
H01M004/94

429/044000, 429/030000, 502/101000, 427/115000

A method is provided for making a gas diffusion layer (GDL) for an electrochemical cell comprising the steps of coating a surface of a plain-weave carbon fiber cloth with a layer comprising carbon particles and one or more highly fluorinated polymers to make a coated plain-weave carbon fiber cloth, and compressing the coated plain-weave carbon fiber cloth to a compression of 25% or greater. Typically the GDL according to the present invention can be incorporated into a membrane electrode assembly (MEA) comprising a very thin polymer electrolyte membrane (PEM), typically having a thickness of 50 microns or less, without increased shorting across the PEM even when the MEA is under compression. A membrane electrode assembly (MEA) is also provided comprising a gas diffusion layer that comprises a plain-weave carbon fiber cloth, and comprising a polymer electrolyte membrane (PEM) having a thickness of 50 microns or less, where the membrane electrode assembly (MEA) has an electrical area resistance of 400 ohm*cmor greater when compressed to 25% compression.

20040171734, Sep 2, 2004

Mar 8, 2004

10/795698

Klaus Hintzer - Kastl, DE
Armin Steurer - Tittmoning, DE
Dieter Birkhorst - Altotting, DE
James Larson - Saint Paul MN, US
Joseph Frisk - Oakdale MN, US
Wayne Boand - Lino Lakes MN, US

3M Innovative Properties Company

C08K003/04

524/495000, 524/544000

An aqueous coating composition is provided comprising carbon particles, one or more highly fluorinated polymers and one or more amine oxide surfactants, typically an amine oxide surfactant according to formula I: where n is 9 to 19. The coating composition is advantageously used in a method of making a gas diffusion layer for an electrochemical cell comprising the steps of: a) coating a electrically conductive porous substrate with the aqueous coating composition, and b) heating the electrically conductive porous substrate to a temperature sufficient to decompose the amine oxide surfactants. In another aspect, a gas diffusion layer for an electrochemical cell is provided which is advantageously free of surfactant.

20070100758, May 3, 2007

Oct 13, 2006

11/549187

Michael Schumann - Plymouth MN, US
James Larson - Maplewood MN, US

HAMRE, SCHUMANN, MUELLER & LARSON, P.C. - Minneapolis MN

G06Q 99/00
H04L 9/00
H04K 1/00

705051000

Methods for facilitating commercial exploitation of IPR and IPR-related opportunities by a law firm on behalf of law firm clients are described, including posting on a law firm website IPR and IPR-related opportunities that clients of the law firm are interested in soliciting offers for possible commercial exploitation, and posting on a law firm website IPR, IPR-related opportunities, technology information, etc. sought by law firm clients.

20130240431, Sep 19, 2013

Mar 16, 2012

13/422657

Lori Foix - Inver Grove Haights MN, US
Michael L. Sherman - Woodbury MN, US
Steven J. Haehn - Oakdale MN, US
Erik Robert Klimpel - Woodbury MN, US
David William Fisher - Eagan MN, US
David T. Bardwell - Woodbury MN, US
Steven Karl Wilson - Pine City MN, US
James Boyer Larson - Stillwater MN, US
Stephen P. Huda - Shelton CT, US
Frank A. Brigano - Northford CT, US

KX Technologies Inc. - West Haven CT

B01D 35/30

210232

The present invention presents a filtration system with an integrated manifold valve. The filtration system employs only one pivotal component—the pivoting of the manifold. The manifold valve includes a dual aperture design for a two-fold alignment scheme with the ingress and egress lines of the fluid source. The invention is free of multi-component rotary valve with internal, rotatable parts, or an activation component, such as a handle, for initiating the rotary valve, allowing the user to rotate the rotational components thereof. The reduction in moveable components in this design reduces the likelihood of failure and increases the reliability of the filtration system.