Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert A. Mittelsteadt — 3 Patents

CDControl Data: 2 patents #17 of 192Top 9%
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
Robert A. Mittelsteadt has been granted 3 US patents while listed as an inventor at Control Data. The first was granted in 1984 and the most recent in January 1985. Robert A. Mittelsteadt ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert A. Mittelsteadt in Burnsville, MN, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4493960 Ceramic blinders for a microwave oven quartz lamp Gregory W. Machesney 1985-01-15
4486639 Microwave oven quartz lamp heaters 1984-12-04
4477706 Combination microwave/convection and broiling oven 1984-10-16