DH

Douglas Hagen

BL B-K Lighting: 6 patents #1 of 5Top 20%
📍 Fresno, CA: #55 of 831 inventorsTop 7%
🗺 California: #66,801 of 386,348 inventorsTop 20%
Overall (All Time): #578,236 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
RE44196 Adjustable mount for sealed light systems 2013-05-07
7699489 In-grade light fixture 2010-04-20
7553042 In-grade light fixture 2009-06-30
7370988 In-grade light fixture housing and hydrological barrier plate for use therein 2008-05-13
7249867 Sealed lighting fixture having mechanisms for venting and equalizing interior air pressure Allen Alexander 2007-07-31
7175297 In-grade light fixture with leveling and alignment mechanisms, installation features and anti-condensation valve 2007-02-13
RE39084 Adjustable mount for sealed light systems 2006-05-02
7033038 In-grade light fixture housing and hydrological barrier plate for use therein 2006-04-25
6161948 Adjustable mount for sealed light systems 2000-12-19