Johanson; Walter A

Patent Applications and Registrations

Patent applications and USPTO patent grants for Johanson; Walter A.The latest application filed is for "illumination devices and high density illumination systems for submerged environments".

Company Profile

0.7.4

Johanson; Walter A - Camarillo CA US
Johanson; Walter A. - Oak Park CA
Johanson, Walter A. - St. Paul MN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Liquid filled light guide containing voids within the walls Grant 8,998,472 - Johanson April 7, 2	2015-04-07
Illumination Devices And High Density Illumination Systems For Submerged Environments App 20120182719 - Johanson; Walter A. ; et al.	2012-07-19
Light tube system for distributing sunlight or artificial light singly or in combination App 20050128728 - Eisenman, James A. ; et al.	2005-06-16
Light tube system for distributing sunlight or artificial light singly or in combination Grant 6,840,645 - Eisenman , et al. January 11, 2	2005-01-11
Illumination tubes, illumination devices and methods of forming same App 20040032739 - Johanson, Walter A.	2004-02-19
Light tube system for distributing sunlight or artificial light singly or in combination App 20020085393 - Eisenman, James E. ; et al.	2002-07-04
Illumination devices and methods of forming same Grant 5,784,517 - Johanson July 21, 1	1998-07-21
Illumination devices and methods of forming same Grant 5,483,119 - Johanson January 9, 1	1996-01-09
Illumination devices and methods of forming same Grant 5,475,785 - Johanson December 12, 1	1995-12-12

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