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Mark Edgson
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Prince George, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Insert for roof shingle or tile
Patent number
D851288
Issue date
Jun 11, 2019
David Spencer
D25 - Building units and construction elements
Information
Patent Grant
Roof growth inhibiting metal strip
Patent number
10,202,771
Issue date
Feb 12, 2019
Mark Edgson
E04 - BUILDING
Information
Patent Grant
Shingle inserts and method for eliminating and preventing growth of...
Patent number
9,499,988
Issue date
Nov 22, 2016
David Spencer
E04 - BUILDING
Information
Patent Grant
Shingle inserts and method for eliminating and preventing growth of...
Patent number
9,103,124
Issue date
Aug 11, 2015
David Spencer
E04 - BUILDING
Patents Applications
last 30 patents
Information
Patent Application
Roof Growth Inhibiting Metal Strip
Publication number
20170101783
Publication date
Apr 13, 2017
Mark Edgson
E04 - BUILDING
Information
Patent Application
Shingle Inserts And Method For Eliminating And Preventing Growth Of...
Publication number
20160024796
Publication date
Jan 28, 2016
David Spencer
E04 - BUILDING
Information
Patent Application
Shingle Inserts And Method For Eliminating And Preventing Growth OF...
Publication number
20140338284
Publication date
Nov 20, 2014
David Spencer
E04 - BUILDING