RA

Robert Appleby

PE Perma-Pipe: 1 patents #4 of 8Top 50%
📍 Redwood City, CA: #2,793 of 5,061 inventorsTop 60%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,128,556 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7824595 Method and system for cast molding a fluid conduit Glen Pfanner, Billy Ervin 2010-11-02
4399832 Air gap assembly — 1983-08-23