RF

Ralph Friedrich

IBM: 28 patents #3,676 of 70,183Top 6%
AI Ameron International: 17 patents #1 of 38Top 3%
AM Ameron: 10 patents #1 of 42Top 3%
📍 Sindelfingen, CA: #1 of 1 inventorsTop 100%
Overall (All Time): #44,611 of 4,157,543Top 2%
56
Patents All Time

Issued Patents All Time

Showing 51–56 of 56 patents

Patent #TitleCo-InventorsDate
4557788 Filament winding of plastic articles William R. Dana, John D. McKenney 1985-12-10
4511423 Apparatus for winding fiber reinforced pipe fittings Gerald M. Magarian 1985-04-16
4506918 Fiber reinforced plastic pipe tee Kenneth Naylor 1985-03-26
4437616 Winding fiber reinforced pipe fittings Gerald M. Magarian 1984-03-20
4384913 Mandrel for filament winding of plastic articles William R. Dana, John D. McKenney 1983-05-24
4323408 Filament winding of plastic articles William R. Dana, John D. McKenney 1982-04-06