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USPTO Patent Rankings Data through Dec 31, 2025
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Bert Poort — 3 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
Covina, CA: #60 of 287 inventorsTop 25%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Bert Poort has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1995 and the most recent in June 1997. Bert Poort ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Bert Poort in Covina, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5634749 Vacuum vice for bowling balls David Edis 1997-06-03
5607268 Vacuum vice for bowling balls and method David Edis 1997-03-04
5409334 Vacuum vice for bowling balls David Edis 1995-04-25