Jason Wayne Jacobson

US Patent:

7311880, Dec 25, 2007

Filed:

Jun 11, 2002

Appl. No.:

10/167370

Inventors:

Craig A. Perman - Woodbury MN, US
Jason R. Jacobson - Columbia MO, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B32B 5/02

US Classification:

422101, 422267

Abstract:

The present invention provides a well-less filtration device that includes a pre-filter layer; a support layer; and at least one layer of solid phase extraction medium disposed between the pre-filter layer and the support layer. At least a portion of the pre-filter layer, support layer and solid phase extraction medium are ultrasonically welded together to form a pattern of filter cells and land areas with the land areas being disposed between the filter cells. The filter cells of the device may be arranged to conform to a standardized array format.

US Patent:

20030226796, Dec 11, 2003

Filed:

Jun 11, 2002

Appl. No.:

10/167219

Inventors:

Glen Bayer - Cottage Grove MN, US
Jason Jacobson - Columbia MO, US
Craig Perman - Woodbury MN, US

Assignee:

3M Innovative Properties Company

International Classification:

B01D036/02

US Classification:

210/259000, 210/262000, 210/511000, 210/323100, 422/101000

Abstract:

The present invention provides a modular system for separating components of a liquid sample. The system includes arrays of units that may be assembled in series to perform multiple separations on a liquid sample in a single step. Also, the modular nature of the system permits a device according to the present invention to be designed to perform different separation schemes on one or more liquid samples within a single device.