1
Joseph P Kronzer, Roger J Stumo, James F Dyrud, Harvey J Berg: Methods of forming fibrous filtration face masks. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn, Karl G Hanson, May 3, 1994: US05307796 (77 worldwide citation)

A method of forming a cup-shaped, non-woven fibrous shaping layer for a filtering face mask. The method includes the steps: (a) heating a non-woven fibrous web that contains at least 40 weight percent thermally bonding fibers, where at least 10 weight percent of the fibrous material is bicomponent f ...


2
Christopher K Haas, Robert D Taylor, William B Black, James M Jonza, Jay M Jennen, David L Vall, Roger J Stumo: Foam security substrate. 3M Innovative Properties Company, Kent S Kokko, October 26, 2010: US07820282 (31 worldwide citation)

The present invention is directed an oriented, foamed article having an integral security element, and a method of making the article. The oriented foam article is particularly useful in the preparation of printed security documents such as currency, stock and bond certificates, birth and death cert ...


3
Andrew J Ouderkirk, Richard C Allen, Olester Benson Jr, James C Breister, Yeun Jong Chou, Patrick R Fleming, William J Kopecky, Diane North, Roger J Stumo, Kristin L Thunhorst, Bruce B Wilson, Harold E Rude: Optical elements containing a polymer fiber weave. 3M Innovative Properties Company, Jay R Pralle, July 29, 2008: US07406239 (13 worldwide citation)

A polarizer is formed with an arrangement of polymer fibers substantially parallel within a polymer matrix. The polymer fibers are formed of at least first and second polymer materials. At least one of the polymer matrix and the first and second polymer materials is birefringent, and provides a bire ...


4
Andrew J Ouderkirk, Olester Benson Jr, James C Breister, Robert L Brott, Yeun Jong Chou, Patrick R Fleming, William J Kopecky, Diane North, Roger J Stumo, Kristin L Thunhorst, Bruce B Wilson: Composite polymer fibers. 3M Innovative Properties Company, Jay R Pralle, June 15, 2010: US07738763 (8 worldwide citation)

A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the sc ...


5
Andrew J Ouderkirk, Olester Benson Jr, James C Breister, Robert L Brott, Yeun Jong Chou, Patrick R Fleming, William J Kopecky, Diane North, Roger J Stumo, Kristin L Thunhorst, Bruce B Wilson: Composite polymer fibers. 3M Innovative Properties Company, Jay R Pralle, April 8, 2008: US07356231 (8 worldwide citation)

A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the sc ...


6
William W Merrill, James M Jonza, Olester Benson Jr, Andrew J Ouderkirk, Michael F Weber, Janet T Keller, Roger J Stumo: Post-formable multilayer optical films and methods of forming. 3M INNOVATIVE PROPERTIES COMPANY, Daniel J Iden, March 7, 2017: US09588270 (3 worldwide citation)

Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are dis ...


7
Bruce B Wilson, Roger J Stumo, Stanley C Erickson, William L Kopecky, James C Breister: Lubricated flow fiber extrusion. 3M Innovative Properties Company, William J Bond, January 13, 2009: US07476352 (2 worldwide citation)

Methods and systems for extruding polymeric fibers are disclosed. The extrusion process preferably involves the delivery of a lubricant separately from a polymer melt stream to each orifice of an extrusion die such that the lubricant preferably encases the polymer melt stream as it passes through th ...


8
Bruce B Wilson, Roger J Stumo, Stanley C Erickson, William J Kopecky, James C Breister: Melt extruded fibers and methods of making the same. 3M Innovative Properties Company, Douglas B Little, James Baker, Adam Bramwell, July 9, 2013: US08481157

Polymeric fibers along with methods and systems for extruding polymeric fibers are disclosed. The extrusion process preferably involves the delivery of a lubricant separately from a polymer melt stream to each orifice of an extrusion die such that the lubricant preferably encases the polymer melt st ...


9
William W Merrill, James M Jonza, Olester Benson, Andrew J Ouderkirk, Michael F Weber, Roger J Stumo: Post-formable multilayer optical films and methods of forming. 3M Innovative Properties Company, 3m Innovative Properties Company, January 27, 2005: US20050019530-A1

Articles including post-formed multilayer optical films with layers of at least one strain-induced birefringent material, methods of manufacturing such articles by post-forming multilayer optical films, and multilayer optical films that are particularly well-suited to post-forming operations are dis ...


10
Christopher K Haas, Robert D Taylor, William B Black, James M Jonza, Jay M Jennen, David L Vall, Roger J Stumo: Foam security substrate. 3M Innovative Properties Company, 3m Innovative Properties Company, August 2, 2007: US20070178295-A1

The present invention is directed an oriented, foamed article having an integral security element, and a method of making the article. The oriented foam article is particularly useful in the preparation of printed security documents such as currency, stock and bond certificates, birth and death cert ...