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

Leon D. Royer — 2 Patents

3M: 2 patents #5,350 of 11,543Top 50%
White Bear Lake, MN: #275 of 561 inventorsTop 50%
Minnesota: #24,068 of 52,454 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Leon D. Royer has been granted 2 US patents while listed as an inventor at 3M. The first was granted in 1983 and the most recent in August 1996. Leon D. Royer ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Leon D. Royer in White Bear Lake, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5547082 Component tray with removable insert Thomas Skrtic, Mark J. Zach 1996-08-20 $19,423,000
4386132 Fly fishing line William A. Dille, Wayne E. Erickson 1983-05-31 $9,335,000