Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Robert D. MacInnes — 1 Patent

IBM: 1 patents #44,794 of 70,183Top 65%
West Redding, CT: #34 of 55 inventorsTop 65%
Connecticut: #21,355 of 34,797 inventorsTop 65%
Overall (All Time): #3,989,830 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4568277 Apparatus for heating objects to and maintaining them at a desired temperature Carlos C. Periu, Robert L. Rohr 1986-02-04