WS

Walter J. Sparzak, Sr.

AT AT&T: 2 patents #7,280 of 18,772Top 40%
BL Bell Telephone Laboratories: 2 patents #297 of 1,445Top 25%
WC Western Electric Company: 1 patents #173 of 531Top 35%
📍 Catonsville, MD: #79 of 266 inventorsTop 30%
🗺 Maryland: #10,129 of 35,612 inventorsTop 30%
Overall (All Time): #1,660,255 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5087521 Modified polymer containing articles Jae-Hak Choi, John J. Mottine, Jr., Walter Tates, William C. Vesperman 1992-02-11
4582867 Coating composition and coated articles Jae-Hak Choi, John J. Mottine, Jr., William C. Vesperman 1986-04-15
4346145 Coating composition and coated articles Jae-Hak Choi, John J. Mottine, Jr., William C. Vesperman 1982-08-24