DW

Donald E. Washkewicz

PA Parker-Hannifin: 5 patents #129 of 1,656Top 8%
📍 Bedford Heights, OH: #8 of 28 inventorsTop 30%
🗺 Ohio: #15,837 of 73,341 inventorsTop 25%
Overall (All Time): #1,055,971 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5584513 Push in plastic tube fitting Michael A. Sweeny, John R. Greco 1996-12-17
4952262 Hose construction Harold Belofsky 1990-08-28
4699178 Low volumetric expansion hose Harold Belofsky 1987-10-13
4384595 Hose construction John R. Greco 1983-05-24
4238260 Method of making an elastomeric hose 1980-12-09