Daniel R Welch

US Patent:

7799560, Sep 21, 2010

Filed:

Nov 10, 2004

Appl. No.:

10/985339

Inventors:

John R. Wilson - New Brighton MN, US
Daniel P. Welch - New Brighton MN, US
Alison Robeck - New Brighton MN, US
Douglas A. Page - New Brighton MN, US

Assignee:

Wilson Wolf Manufacturing Corporation - New Brighton MN

International Classification:

C12M 3/06
C12M 1/12
C12N 5/00

US Classification:

4352971, 4352975, 4352982, 4353042, 435401, 422101, 21032163, 21032187

Abstract:

A versatile compartmentalized cell culture device, with a selectively permeable membrane separating the compartments, provides many attributes relative to traditional devices. It can be configured for high-density cell culture, co-culture, and sample dialysis while rolling or standing still. It can also be configured for continuous movement of liquid between compartments. The wide combination of attributes not found in other membrane based cell culture and bioprocessing devices includes more cell capacity, more cell secreted product capacity, higher cell and product density, increased medium capacity, minimized use of exogenous growth factors, compatibility with standard cell culture equipment and protocols, increased scale up efficiency, capacity to function when rolling or standing still, capacity for perfusion without the need for pumps, and more efficient sample dialysis.

US Patent:

8501468, Aug 6, 2013

Filed:

Mar 1, 2010

Appl. No.:

12/715191

Inventors:

John R. Wilson - New Brighton MN, US
Daniel P. Welch - Zimmerman MN, US
Alison Robeck - St. Michael MN, US
Douglas A. Page - Bloomington MN, US

Assignee:

Wheaton Industries, Inc. - Millville NJ

International Classification:

C12N 5/00

US Classification:

435325, 435366, 435383, 435395, 435401

Abstract:

A versatile compartmentalized cell culture device, with a selectively permeable membrane separating the compartments, provides many attributes relative to traditional devices. It can be configured for high-density cell culture, co-culture, and sample dialysis while rolling or standing still. It can also be configured for continuous movement of liquid between compartments. The wide combination of attributes not found in other membrane based cell culture and bioprocessing devices includes more cell capacity, more cell secreted product capacity, higher cell and product density, increased medium capacity, minimized use of exogenous growth factors, compatibility with standard cell culture equipment and protocols, increased scale up efficiency, capacity to function when rolling or standing still, capacity for perfusion without the need for pumps, and more efficient sample dialysis.

US Patent:

20100255576, Oct 7, 2010

Filed:

Apr 2, 2010

Appl. No.:

12/753573

Inventors:

John R. Wilson - New Brighton MN, US
Douglas A. Page - Bloomington MN, US
Daniel P. Welch - Zimmerman MN, US
Alison Robeck - St. Michael MN, US

International Classification:

C12N 5/20

US Classification:

435326

Abstract:

Gas permeable devices and methods are disclosed for cell culture, including cell culture devices and methods that contain medium at heights, and certain gas permeable surface area to medium volume ratios. These devices and methods allow improvements in cell culture efficiency and scale up efficiency.

US Patent:

52755878, Jan 4, 1994

Filed:

Apr 24, 1992

Appl. No.:

7/873381

Inventors:

Thomas Kubalak - Plymouth MN
Daniel Welch - Zimmerman MN

Assignee:

Mentor Corporation - Santa Barbara CA

International Classification:

A61F 544

US Classification:

604349

Abstract:

An applicator for an external male urinary catheter is described for applying and securing a catheter to a user. The applicator has a solid cylinder preferably with slits surrounded by a flexible skirt on which the catheter is installed, and the cylinder causes the skirt to invert to apply the catheter to the user.

US Patent:

46888306, Aug 25, 1987

Filed:

Jun 9, 1986

Appl. No.:

6/872119

Inventors:

Stanlee W. Meisinger - Brooklyn Center MN
Daniel P. Welch - Eden Prairie MN

Assignee:

FasTest, Inc. - St. Paul MN

International Classification:

F16L 1700

US Classification:

285100

Abstract:

A quick connect coupling (20) for fluid tight connection to a threaded fluid port (22). A body (26) of the quick connect coupling (20) having a cylindrical, externally threaded first end (28) defining an axially extending passage (29) into the coupling body (26). Axially slidable sleeve (42) being mounted on the outside of the coupling body (26) for slidable motion between a seal unassisted position and a seal assisted position, the axially slidable sleeve (42) forcing against an elastomeric seal (30) in the seal assisted position so as to provide a fluid tight seal between an end of the fluid port (22) and the coupling (20).

US Patent:

54547989, Oct 3, 1995

Filed:

May 14, 1993

Appl. No.:

8/061901

Inventors:

Thomas P. Kubalak - Plymouth MN
Daniel P. Welch - Zimmerman MN
Daniel J. Habecker - Santa Barbara CA

Assignee:

Mentor Corporation - Minneapolis MN

International Classification:

A61F 544

US Classification:

604328

Abstract:

A disposable urine bag having sealed cavity members where one cavity stores an extendable catheter and also acts as a urine storage reservoir. A second sealed and peel-away cavity includes a catheter advancement mechanism which provides for lubricated catheter advancement without actual contact of the catheter by the human hand. An absorption member is provided to semi-solidify urine stored in the urine storage reservoir.

US Patent:

20160024465, Jan 28, 2016

Filed:

Jul 27, 2015

Appl. No.:

14/810071

Inventors:

- New Brighton MN, US
Douglas A. Page - Eden Prairie MN, US
Daniel Welch - Zimmerman MN, US
Alison Robeck - Monticello MN, US

International Classification:

C12N 5/071

Abstract:

Gas permeable devices and methods are disclosed for cell culture, including cell culture devices and methods that contain medium at heights, and certain gas permeable surface area to medium volume ratios. These devices and methods allow improvements in cell culture efficiency and scale up efficiency.

US Patent:

20150329815, Nov 19, 2015

Filed:

Jul 27, 2015

Appl. No.:

14/809484

Inventors:

- New Brighton MN, US
Douglas A. Page - Eden Prairie MN, US
Daniel Welch - Zimmerman MN, US
Alison Robeck - Monticello MN, US

International Classification:

C12M 1/04
C12M 1/12
C12N 5/00

Abstract:

Gas permeable devices and methods are disclosed for cell culture, including cell culture devices and methods that contain medium at heights, and certain gas permeable surface area to medium volume ratios. These devices and methods allow improvements in cell culture efficiency and scale up efficiency.

Address:

5601 Dewey Hl Rd APT 101, Minneapolis, MN 55439

VIN:

1FAHP34N29W249678

Make:

FORD

Model:

FOCUS

Year:

2009