DF

David G. Freier

3M: 39 patents #220 of 11,543Top 2%
📍 Okabena, MN: #27 of 412 inventorsTop 7%
🗺 Minnesota: #1,341 of 52,454 inventorsTop 3%
Overall (All Time): #81,743 of 4,157,543Top 2%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
8608363 Recycling backlights with semi-specular components Michael F. Weber, Timothy J. Nevitt, John A. Wheatley, Rolf W. Biernath, Gilles J. Benoit +3 more 2013-12-17
8596809 Suspended optical film Raymond P. Johnston, Mieczyslaw H. Mazurek, Martin Kristoffersen, John A. Wheatley 2013-12-03
8523419 Thin hollow backlights with beneficial design characteristics Timothy J. Nevitt, Timothy J. Hebrink, Michael F. Weber, Rolf W. Biernath, John A. Wheatley +3 more 2013-09-03
8469575 Backlight and display system using same Michael F. Weber, Timothy J. Hebrink, Timothy J. Nevitt, John A. Wheatley, Craig R. Schardt +7 more 2013-06-25
8251527 Light duct bend 2012-08-28
8192048 Lighting assemblies and systems Martin Kristoffersen, Rolf W. Biernath, Thomas R. Corrigan, Raymond P. Johnston, Michael A. Meis +4 more 2012-06-05
8098434 Optical decollimator for daylighting systems Thomas R. Hoffend, Kenneth A. P. Meyer 2012-01-17
7898520 Method and apparatus for backlight simulation 2011-03-01
7801716 Computerized modeling for design and evaluation of organic light emitting diodes 2010-09-21
6641880 Signage having films to reduce power consumption and improve luminance uniformity and method for using same Frank L. Deyak, Neal T. Strand, Ellen O. Aeling, Andrew J. Ouderkirk, Michael F. Weber 2003-11-04
6416201 Illuminated sign with lamp masks for uniform illumination Neal T. Strand, Ellen O. Aeling 2002-07-09
6301418 Optical waveguide with diffuse light extraction Joseph Bianconi, Richard Decena Ornelaz 2001-10-09
6282821 Low-loss face diffuser films for backlit signage and methods for using same Neal T. Strand, Scott R. Kaytor, Frank L. Deyak 2001-09-04
6123442 Articles with diffuse reflection of light from light fibers Cheryl Vrieze 2000-09-26