AW

Alvin E. Witt

PP Permagrain Products: 8 patents #1 of 5Top 20%
📍 Media, PA: #56 of 402 inventorsTop 15%
🗺 Pennsylvania: #9,221 of 74,527 inventorsTop 15%
Overall (All Time): #588,703 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6228433 Abrasion resistant urethane coatings 2001-05-08
5985397 Coated synthetic resin board tiles Matthew F. Humphreys, Joseph E. Tomasko 1999-11-16
5976689 Coated synthetic resin board tiles Matthew F. Humphreys, Joseph E. Tomasko 1999-11-02
5437934 Coated cement board tiles Joseph E. Tomasko, Matthew F. Humphreys 1995-08-01
5271200 Title display system 1993-12-21
4568564 Impregnated wood product having a bleached or white appearance and process for making the same 1986-02-04
4519174 Stain-resistant earthen articles, grout and floor and wall surfaces composed thereof 1985-05-28
4407884 Stain-resistant earthen articles 1983-10-04
4256798 Moisture-resistant fire-retardant decorative floor and wall coverings and process for the manufacture thereof Lewis R. Bosco 1981-03-17