PF

Philip C. Feffer

Chevron: 4 patents #1,079 of 4,788Top 25%
📍 Silver Spring, MD: #387 of 1,812 inventorsTop 25%
🗺 Maryland: #8,004 of 35,612 inventorsTop 25%
Overall (All Time): #1,309,582 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4316311 Bounce crimping apparatus — 1982-02-23
4309801 Texturizing process — 1982-01-12
4293985 Method and apparatus for making bounce crimped yarn — 1981-10-13
4226010 Process for bounce crimp texturizing yarn — 1980-10-07