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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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James C. Simpson — 3 Patents

VOVortec: 2 patents #5 of 11Top 50%
AUAlfred University: 1 patents #17 of 62Top 30%
Alfred Station, NY: #11 of 29 inventorsTop 40%
New York: #38,631 of 115,490 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
James C. Simpson has been granted 3 US patents while listed as an inventor at Vortec. The first was granted in 1996 and the most recent in August 1999. James C. Simpson ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list James C. Simpson in Alfred Station, NY, US.

Patents per Year

Patents granted per year, 1996 to 1999Bar chart with a peak of 1 patents in 1996.peak 11996: 1 patents19961998: 1 patents19981999: 1 patents1999

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5935885 Manufacture of ceramic tiles from fly ash James G. Hnat, Akshay Mathur 1999-08-10
5830251 Manufacture of ceramic tiles from industrial waste Maurizio Sanavia, James G. Hnat 1998-11-03
5495767 Laser vibrometer Xingwu Wang 1996-03-05