EB

Eyvind Boyesen

PI Performance Industries: 2 patents #1 of 1Top 100%
📍 Kempton, PA: #1 of 1 inventorsTop 100%
🗺 Pennsylvania: #146 of 3,759 inventorsTop 4%
Overall (1989): #10,886 of 140,708Top 8%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4879976 Reed valve mechanism for engines — 1989-11-14
4858991 Chair for infants — 1989-08-22
4829946 Exhaust control valve for two-stroke cycle engines and process for using the same — 1989-05-16