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USPTO Patent Rankings Data through Dec 31, 2025
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Stephen Whitaker — 4 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
CGCoriolis Group: 1 patents #9 of 12Top 75%
Davis, CA: #372 of 1,472 inventorsTop 30%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Stephen Whitaker has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1986 and the most recent in October 1991. Stephen Whitaker ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Stephen Whitaker in Davis, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5056127 Enhanced heat transfer rotating anode x-ray tubes Arthur H. Iversen 1991-10-08
5018181 Liquid cooled rotating anodes Arthur H. Iversen 1991-05-21
4799543 Means for temperature control of heated surfaces Arthur H. Iversen 1989-01-24
4622687 Liquid cooled anode x-ray tubes Arthur H. Iversen 1986-11-11