Mark J Stevenson

Address:

1605 Johnny Cake Rdg Ln, Saint Paul, MN 55122

Phone:

(651)6992107

VIN:

3LNHM26T77R646002

Make:

LINCOLN

Model:

MKZ

Year:

2007

US Patent:

6813820, Nov 9, 2004

Filed:

Dec 19, 2001

Appl. No.:

10/027763

Inventors:

James M. Nelson - Lino Lakes MN
Raghunath Padiyath - Woodbury MN
Robert B. Secor - Stillwater MN
Mark J. Stevenson - Forest Lake MN
Michael J. Tichy - Staples MN
Robert A. Yapel - Oakdale MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B23P 2500

US Classification:

295274, 2641771, 26417716, 264400, 425135, 425466, 118406, 118410, 21912167, 21912169, 2952511

Abstract:

The invention is a method of forming extrudate having substantially uniform thickness. A shim is formed which has a thickness variation of less than or equal to about 0. 5 mil (13 microns) total indicated runout. This shim is disposed between a first die portion having a first surface and a second die portion having a second surface. A slot is formed between the first surface and the second surface. The slot has a height dimension substantially the same as the shim thickness. Flowable material is extruded through the slot.

US Patent:

7615175, Nov 10, 2009

Filed:

Aug 3, 2004

Appl. No.:

10/910522

Inventors:

James M. Nelson - Lino Lakes MN, US
Raghunath Padiyath - Woodbury MN, US
Robert B. Secor - Stillwater MN, US
Mark J. Stevenson - Forest Lake MN, US
Michael J. Tichy - Staples MN, US
Robert A. Yapel - Oakdale MN, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B29C 47/14
B32B 27/00

US Classification:

264212, 26417716, 425224

Abstract:

The invention is a method of forming extrudate having substantially uniform thickness. A shim is formed which has a thickness variation of less than or equal to about 0. 5 mil (13 microns) total indicated runout. This shim is disposed between a first die portion having a first surface and a second die portion having a second surface. A slot is formed between the first surface and the second surface. The slot has a height dimension substantially the same as the shim thickness. Flowable material is extruded through the slot.

US Patent:

20130172949, Jul 4, 2013

Filed:

Dec 20, 2012

Appl. No.:

13/722952

Inventors:

Mark Stevenson - Maplewood MN, US

International Classification:

A61N 1/375

US Classification:

607 2

Abstract:

An example includes an apparatus for use within a header of an implantable medical device, the apparatus including a substantially annular spring, sized and shaped to be disposed in the header, the spring defining a loop extending about a central axis, the spring including a plurality of elastically deformable switchback portions that both zigzag and curve transversely about the loop to define a surface that at least partially encompasses the loop.

US Patent:

20170136151, May 18, 2017

Filed:

Jan 30, 2017

Appl. No.:

15/419062

Inventors:

- WESTLAKE OH, US
Kevin C. Geppert - Eagan MN, US
Thomas A. Kirk - Hastings MN, US
Huadong Lou - Plymouth MN, US
Mark Stevenson - Cottage Grove MN, US

International Classification:

A61L 27/36
A61M 39/22
B01F 15/02
B01F 3/20
B01F 3/12
B01F 13/00
A61B 17/88
A61J 1/20

Abstract:

An apparatus and method for hydrating a particulate biomaterial with a liquid biomaterial includes a vacuum device and a valve for withdrawing a gas from the particulate biomaterial and introducing the liquid biomaterial. The valve includes a hub, a valve body, a particulate port, a vacuum port, and a liquid port. The valve body selectively moves between first and second positions. The valve body at least partially defines a first passage and a second passage. The particulate port, the vacuum port, and the liquid port are each configured to fluidly connect to a particulate container, the vacuum device, and the liquid container, respectively. In the first position, the first passage fluidly connects the vacuum port to the particulate port for withdrawing the gas from the particulate container. In the second position, the second passage fluidly connects the liquid port to the particulate port for hydrating the particulate biomaterial.

US Patent:

20160199655, Jul 14, 2016

Filed:

Mar 24, 2016

Appl. No.:

15/079071

Inventors:

- St. Paul MN, US
Mark Stevenson - Maplewood MN, US

International Classification:

A61N 1/375

Abstract:

An example includes an apparatus for use within a header of an implantable medical device, the apparatus including a substantially annular spring, sized and shaped to be disposed in the header, the spring defining a loop extending about a central axis, the spring including a plurality of elastically deformable switchback portions that both zigzag and curve transversely about the loop to define a surface that at least partially encompasses the loop.

US Patent:

20140378937, Dec 25, 2014

Filed:

Jun 23, 2014

Appl. No.:

14/311945

Inventors:

- Westlake OH, US
Kevin C. Geppert - Eagan MN, US
Jon E. Hoogenakker - Inver Grove Heights MN, US
Huadong Lou - Plymouth MN, US
Zachary Rzeszutek - Minneapolis MN, US
Mark Stevenson - Cottage Grove MN, US

International Classification:

A61J 1/00
B01F 15/02

US Classification:

604416

Abstract:

A dispensing assembly includes a syringe body having a barrel and a dispensing tip. The dispensing assembly further includes a mixing and plunging assembly configured for coupling with the syringe body and comprising a mixer and a plunger. The mixer is configured for mixing material in the barrel and has a rod and a mixing element removably connected with the rod. The plunger is configured to dispense material from the barrel through the dispensing tip. Also, the rod is configured to be detached from the mixing element and used to push material out of the dispensing tip.

US Patent:

20140371721, Dec 18, 2014

Filed:

Jun 17, 2014

Appl. No.:

14/306748

Inventors:

- Westlake OH, US
Mark Stevenson - Cottage Grove MN, US

International Classification:

A61B 17/88

US Classification:

604522, 604 82

Abstract:

A system for mixing and dispensing at least first and second components of a biomaterial. The system includes a first syringe including a barrel having a proximal and distal ends. The barrel is configured to receive the first and second components of the biomaterial. There is a cap on the distal end of the barrel. The cap has an opening to allow materials to be directed into the barrel. The system further includes a mixing member. At least a portion of the mixing member is configured to enter the barrel through the cap. The mixing member is configured to move at least axially within the barrel to mix the first and second components.

US Patent:

20140261082, Sep 18, 2014

Filed:

Mar 12, 2014

Appl. No.:

14/206586

Inventors:

- Westlake OH, US
Kevin C. Geppert - Eagan MN, US
Thomas A. Kirk - Hastings MN, US
Huadong Lou - Plymouth MN, US
Mark Stevenson - Maplewood MN, US

Assignee:

NORDSON CORPORATION - Westlake OH

International Classification:

A61L 27/36

US Classification:

10628735, 422243

Abstract:

An apparatus and method for hydrating a particulate biomaterial with a liquid biomaterial includes a vacuum device and a valve for withdrawing a gas from the particulate biomaterial and introducing the liquid biomaterial. The valve includes a hub, a valve body, a particulate port, a vacuum port, and a liquid port. The valve body selectively moves between first and second positions. The valve body at least partially defines a first passage and a second passage. The particulate port, the vacuum port, and the liquid port are each configured to fluidly connect to a particulate container, the vacuum device, and the liquid container, respectively. In the first position, the first passage fluidly connects the vacuum port to the particulate port for withdrawing the gas from the particulate container. In the second position, the second passage fluidly connects the liquid port to the particulate port for hydrating the particulate biomaterial.