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

Richard T. LeFrois

HOHoneywell: 1 patents #7,507 of 14,447Top 55%
Minneapolis, MN: #3,628 of 6,114 inventorsTop 60%
Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #4,032,860 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4443180 Variable firing rate oil burner using aeration throttling 1984-04-17