Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MK

Melvin C. Kuehn — 2 Patents

Aitkin, MN: #17 of 47 inventorsTop 40%
Minnesota: #24,068 of 52,454 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Melvin C. Kuehn has been granted 2 US patents. The first was granted in 1990 and the most recent in November 1991. Melvin C. Kuehn ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Melvin C. Kuehn in Aitkin, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5065570 Bi-fold hay rake system 1991-11-19
4947631 Bi-fold hay rake system 1990-08-14