Assignee
DOUGLASS III CARL RAYMOND
US·4 granted patents·14 citations·filing 2014–2016
Top patents by PatentIndex Score
4 records- 0186US9815229B2Method of rotational molding rib profile for large diameter pipe fittingsDOUGLASS III CARL RAYMOND·Filed 2015·Granted Nov 14, 2017·5 cites·12 claims
- 0276US9764506B2System and method of inspecting inner smooth wall of corrugated dual wall pipeDOUGLASS III CARL RAYMOND·Filed 2016·Granted Sep 19, 2017·1 cites·10 claims
- 0340USD724704SCorrugated foundation drainage tileDOUGLASS III CARL RAYMOND·Filed 2014·Granted Mar 17, 2015·5 cites·1 claims
- 0439USD787649SWebless corrugated dual wall foundation drainDOUGLASS III CARL RAYMOND·Filed 2016·Granted May 23, 2017·3 cites·1 claims
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