Katherine C Brown

US Patent:

6368708, Apr 9, 2002

Filed:

Jun 20, 1996

Appl. No.:

08/667153

Inventors:

Katherine A. Brown - Lake Elmo MN
Michael R. Kesti - Minneapolis MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08F11006

US Classification:

428355RA, 428402, 428355 EN, 526161, 526172, 526308, 5263482, 5263483, 5263485, 526351, 526909, 526931, 526 93, 526 94

Abstract:

Microspheres comprise a polymer or copolymer including one or more of 1) a plurality of C or larger alpha-olefin units wherein the polymer has an average number of branch points less than one per monomer unit, and 2) a plurality of C alpha-olefin units wherein the polymer has an average number of branch points greater than 0. 01 per monomer unit, the microspheres having an average diameter in the range of 1 to 300 micrometers. Optionally, the polymer of the microspheres can be crosslinked. The microspheres can be prepared by suspension or dispersion polymerization processes using aqueous or organic reaction media.

US Patent:

6407669, Jun 18, 2002

Filed:

Feb 2, 2001

Appl. No.:

09/776245

Inventors:

Katherine A. Brown - Lake Elmo MN
James N. Dobbs - Woodbury MN
William C. Egbert - Minneapolis MN
Luther E. Erickson - Grant MN
John S. Huizinga - Dellwood MN
Gregory F. King - Minneapolis MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 1314

US Classification:

3405721, 3405724, 3405725, 3405729, 3406864, 340 101

Abstract:

Folded radio frequency identification tag devices and methods for high-volume, low-cost production are disclosed. The folded construction of the devices and methods of the present invention can reduce the complexity of the RFID tags by providing a one-sided circuit design. The resonant frequency of the circuits formed on the devices may be tuned by severing selected connections to one or more tuning capacitor plates that form a part of the capacitor structure. Severing connections to the tuning capacitor plates changes the capacitance of the circuit which, in turn, changes the resonant frequency of the circuit.

US Patent:

6586082, Jul 1, 2003

Filed:

May 6, 1997

Appl. No.:

08/836395

Inventors:

Katherine A. Brown - Lake Elmo MN

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

B32B 700

US Classification:

428211, 428462, 526314, 526346

Abstract:

A composite article includes a paper substrate, at least a portion of which is saturated with either a polymerizable ring-strained olefin monomer or the polymerization product of such a monomer. The polymerization of such monomers are catalyzed by transition metal-containing species. These paper saturated articles are useful as, inter alia, packaging materials, release liners, and backings.

US Patent:

7259678, Aug 21, 2007

Filed:

Dec 8, 2003

Appl. No.:

10/730345

Inventors:

Katherine A. Brown - Lake Elmo MN, US
William C. Egbert - Minneapolis MN, US
Jia Hu - Mounds View MN, US
Thomas C. Mercer - Maplewood MN, US
Terry S. Nees - Shoreview MN, US
Fay T. Salmon - Eden Prairie MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08B 13/14

US Classification:

3405728, 3405727, 438125, 438126

Abstract:

A durable radio frequency identification tag. A preferred embodiment of the invention provides a durable radio frequency identification tag comprising: a flexible substrate including a first major surface and a second major surface opposite the first major surface; a radio frequency identification antenna attached to the first major surface of the substrate; an integrated circuit attached to the antenna; and a thermoplastic guard attached to the flexible substrate adjacent the integrated circuit. The present invention also provides a method of manufacturing a durable radio frequency identification tag.

US Patent:

7417550, Aug 26, 2008

Filed:

Dec 20, 2004

Appl. No.:

11/017131

Inventors:

Katherine A. Brown - Lake Elmo MN, US
Terry S. Nees - Shoreview MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405727, 3405721, 3405728, 343873

Abstract:

An environmentally friendly radio frequency identification (RFID) label. One embodiment of the invention provides an environmentally friendly radio frequency identification (RFID) label, comprising: a substrate including a first major surface and a second major surface opposite the first major surface; an RFID antenna attached to the first major surface of the substrate, where the RFID antenna is consisting essentially of tin, aluminum, palladium, gold, or combinations thereof; an integrated circuit attached to the antenna; and a first layer of repulpable adhesive attached to the substrate. The present invention also provides methods using environmentally friendly radio frequency identification (RFID) labels.

US Patent:

7535366, May 19, 2009

Filed:

Dec 13, 2006

Appl. No.:

11/610243

Inventors:

William C. Egbert - Minneapolis MN, US
Katherine A. Brown - Lake Elmo MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405727, 3405728

Abstract:

A radio frequency identification (RFID) tag that can survive exposure to microwave energy.

US Patent:

20010008925, Jul 19, 2001

Filed:

Feb 8, 2001

Appl. No.:

09/779680

Inventors:

Katherine Brown - Lake Elmo MN, US
William Lamanna - Stillwater MN, US
Allen Siedle - Lake Elmo MN, US
Edward Stewart - White Bear Lake MN, US
Penelope Swanson - Minneapolis MN, US

International Classification:

C08F010/14

US Classification:

526/094000, 526/093000, 526/120000, 526/134000, 526/171000, 526/348200, 526/348300, 526/348600, 526/351000

Abstract:

A polymerizable composition comprises an alpha-olefin hydrocarbon monomer, an effective amount of an organometallic catalyst of a Group VIII metal, preferably Ni or Pd, and at least one of water and air. Novel catalysts for polymerizing alpha-olefin hydrocarbon monomers provide improved processes and products. Methods of the invention include polymerizing the composition in open air and in the presence of water to provide novel polymers.

US Patent:

20050190072, Sep 1, 2005

Filed:

Feb 26, 2004

Appl. No.:

10/788061

Inventors:

Katherine Brown - Lake Elmo MN, US
Catherine Behun - White Bear Lake MN, US
Kaileen Chen - White Bear Lake MN, US
David Erickson - Stillwater MN, US
Ronald Jesme - Plymouth MN, US
Orlin Knudson - Vadnais Heights MN, US
Robert Lorentz - North Oaks MN, US
James McGee - Cedar MN, US
Robert Sainati - Bloomington MN, US
Lucien Solefack - Inver Grove Heights MN, US
Justin Tungjunyatham - Falcon Heights MN, US
Christopher Yungers - St. Paul MN, US

International Classification:

G08B005/22

US Classification:

340825360

Abstract:

An item monitoring system and method of using an item monitoring system. The present invention relates more particularly to an item monitoring system including a sensor, that senses a plurality of items in a first amount of space associated with the sensor and that senses both items containing metal and items containing no metal, a communications network, and a computer that receives information from the sensor through the communications network. The present invention also relates more particularly to a method of monitoring items to determine the number of items within a first amount of space associated with the sensor.