Assignee
FRIEDRICH RALPH S
US·4 granted patents·17 citations·filing 2006–2011
Top patents by PatentIndex Score
4 records- 0186US9057204B2Fiber reinforced resin polymer mortar poleFRIEDRICH RALPH S·Filed 2011·Granted Jun 16, 2015·9 cites·23 claims
- 0282US8069880B2Pressure cast concrete or mortar lined steel pipes and methods of making the sameFRIEDRICH RALPH S·Filed 2008·Granted Dec 6, 2011·6 cites·34 claims
- 0366US8627854B2Pressure cast concrete or mortar lined steel pipes and methods of making the sameFRIEDRICH RALPH S·Filed 2011·Granted Jan 14, 2014·2 cites·19 claims
- 0451US9879440B2Fiber reinforced resin polymer mortar poleFRIEDRICH RALPH S·Filed 2006·Granted Jan 30, 2018·0 cites·11 claims
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