Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
Home › Inventors › John N. Ouwenga
JO

John N. Ouwenga

New York: #67,335 of 115,490 inventorsTop 60%
Overall (All Time): #3,947,009 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4726198 Centrifugal heat exchanger — 1988-02-23

Nearby-Ranked Inventors

Martin Y. Woolfolk1
Ian M. Waddell1
Gregory J. Nancarrow1
Murdo J. N. Mackay1
Dennis L. Megrditchian1
Ichiro Takano1
Nick Carter1
Joseph P. Loacano1
Sheau-Po Hsu1