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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Frederick E. Kara — 3 Patents

CACanron: 3 patents #5 of 32Top 20%
Heart's Delight-Islington, CA: #30 of 111 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Frederick E. Kara has been granted 3 US patents while listed as an inventor at Canron. The first was granted in 1980 and the most recent in November 1981. Frederick E. Kara ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Frederick E. Kara in Heart's Delight-Islington, NL, CA.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4299624 Molten metal treatment Kirk D. Miller, John B. Flood, George Dimou, Richard W. Amos 1981-11-10
4296920 Molten metal treatment Kirk D. Miller, John B. Flood, George Dimou, Richard W. Amos 1981-10-27
4199353 Molten metal treatment Kirk D. Miller, John B. Flood, George Dimou, Richard W. Amos 1980-04-22