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USPTO Patent Rankings Data through Dec 31, 2025
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William G. Ehrich — 1 Patent

CDControl Data: 1 patents #56 of 192Top 30%
Minneapolis, MN: #3,665 of 6,114 inventorsTop 60%
Minnesota: #32,682 of 52,454 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
William G. Ehrich has been granted 1 US patent while listed as an inventor at Control Data. All of these patents were granted in 1989. William G. Ehrich ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list William G. Ehrich in Minneapolis, MN, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4860288 Clock monitor for use with VLSI chips Judy L. Teske, Brian D. Borchers, Don A. Daane, Daniel J. Baxter 1989-08-22