Assignee

FREDE FRIEDHELM

DE·2 granted patents·10 citations·filing 2008–2009

Technology mixE06B2

Top patents by PatentIndex Score

2 records

0173US8684064B2High speed rollup door with rollable door leafFREDE FRIEDHELM·Filed 2008·Granted Apr 1, 2014·8 cites·15 claims
0263US8267146B2Adjustable counterbalance system for roller doorsFREDE FRIEDHELM·Filed 2009·Granted Sep 18, 2012·2 cites·16 claims

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