Inventor

Todd A. Ballen

Inventor

St. Paul, MN, US

Overview

17→

Patents

2003–2021

Patent span

Physics

Primary field (CPC G)

Patents· 17 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus15%

H10HInorganic light-emitting semiconductor devices having potential barriers11%

B82YSpecific uses or applications of nanostructures6%

H01LSemiconductor devices6%

B29DProducing particular articles from plastics or from substances in a plastic state4%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering4%

C23CCoating metallic material4%

F21VFunctional features or details of lighting devices or systems thereof4%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices4%

G06KGraphical data reading4%

PatentTitleYear

11,016,229Optical filter2021 10,586,446Sign to vehicle identification system2020 10,502,875Microtiled prismatic cube corner articles2019 10,339,804Sign to vehicle identification system2019 9,703,023'Microtiled prismatic cube corner articles'2017 9,293,622'Re-emitting semiconductor carrier devices for use with LEDs and methods of manufacture'2016 9,136,429'Multilayer construction'2015 8,846,518'Multilayer construction'2014 8,193,543'Monochromatic light source with high aspect ratio'2012 8,026,115'Optical bonding composition for LED light source'2011 8,013,345'Optical bonding composition for LED light source'2011 8,004,767'Process for making microlens arrays and masterforms'2011 7,790,353'Multidirectional photoreactive absorption method'2010 7,583,444'Process for making microlens arrays and masterforms'2009 7,166,409'Multipass multiphoton absorption method and apparatus'2007 6,848,822'Light guide within recessed housing'2005 6,567,215'Beaded rear projection screen with tunable gain'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2021Patents assigned to 3M INNOVATIVE PROPERTIES CO (17)· patent assignee history

2003–2021Based in St. Paul, MN, US· patent location history

2012–2016Patents assigned to BALLEN TODD A (3)· patent assignee history

2012–2016Patents assigned to HAASE MICHAEL A (3)· patent assignee history

2012–2016Patents assigned to LEATHERDALE CATHERINE A (2)· patent assignee history

2014–2016Patents assigned to SMITH TERRY L (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
3M INNOVATIVE PROPERTIES CO	17	2003–2021
BALLEN TODD Aself	3	2012–2016
HAASE MICHAEL A	3	2012–2016
LEATHERDALE CATHERINE A	2	2012–2016
SMITH TERRY L	2	2014–2016

Locations

Location	Patents	Span
St. Paul, Minnesota, US	17	2003–2021