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USPTO Patent Rankings Data through Dec 31, 2025
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Larry Lutton — 3 Patents

VAVaridigm: 3 patents #1 of 8Top 15%
Burnsville, MN: #221 of 632 inventorsTop 35%
Minnesota: #19,251 of 52,454 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Larry Lutton has been granted 3 US patents while listed as an inventor at Varidigm. The first was granted in 2005 and the most recent in November 2007. Larry Lutton ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Larry Lutton in Burnsville, MN, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7293718 Variable output heating and cooling control Paul E. Sigafus, Ralph H. Torborg, James W. Ratz 2007-11-13
6866202 Variable output heating and cooling control Paul E. Sigafus, Ralph H. Torborg, James W. Ratz 2005-03-15 $1,719,000
6864659 Variable speed controller for air moving applications using an AC induction motor James W. Ratz, Paul E. Sigafus, Nickolas G. Vrionis 2005-03-08 $1,666,000