Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DW

Denis M. W. Winslow

Durbanville, ZA: #1 of 2 inventorsTop 50%
Overall (1989): #29,078 of 140,708Top 25%
2 Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4865333 Seal protection apparatus 1989-09-12
4819950 Mechanical seal 1989-04-11