Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Mackenzie — 3 Patents

General Motors: 1 patents #9,441 of 18,328Top 55%
Muncie, IN: #57 of 234 inventorsTop 25%
Indiana: #10,705 of 33,936 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert Mackenzie has been granted 3 US patents while listed as an inventor at General Motors. The first was granted in 1988 and the most recent in January 2009. Robert Mackenzie ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert Mackenzie in Muncie, IN, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7473179 Retro-fit responsible gaming system John Xidos 2009-01-06
7470191 Responsible gaming system John Xidos 2008-12-30
4731601 Cranking system performance indicator Robert J. Nowakowski, Van V. Reisberg, Jr. 1988-03-15