WK

William L. Krayer

AC Aristech Chemical: 3 patents #17 of 74Top 25%
📍 Pittsburgh, PA: #1,362 of 7,570 inventorsTop 20%
🗺 Pennsylvania: #13,581 of 74,527 inventorsTop 20%
Overall (All Time): #876,317 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7147445 Turntable with turning guide 2006-12-12
7137797 Turntable with gerotor 2006-11-21
5248737 Method of making amine/propylene copolymers Andrew J. Sivak, Leonard A. Cullo 1993-09-28
5239030 Amine/propylene copolymers Andrew J. Sivak, Leonard A. Cullo 1993-08-24
5200542 Diallyl silyl amines Andrew J. Sivak, Leonard A. Cullo 1993-04-06
5152592 Corner cabinet 1992-10-06