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USPTO Patent Rankings Data through Dec 31, 2025
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William A. Fields — 4 Patents

SUSurtec: 4 patents #3 of 3Top 100%
Livermore, CA: #706 of 2,185 inventorsTop 35%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
William A. Fields has been granted 4 US patents while listed as an inventor at Surtec. The first was granted in 1995 and the most recent in August 2015. William A. Fields ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list William A. Fields in Livermore, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9102036 Vacuum buffer assembly 2015-08-11
8764520 Vacuum buffer assembly 2014-07-01
6990709 Vacuum sweeping system for automatic scrubber 2006-01-31
5388305 Vacuum buffer 1995-02-14