Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Hasan Ulkarim — 1 Patent

PCPrecision Combustion: 1 patents #37 of 58Top 65%
Hamden, CT: #347 of 554 inventorsTop 65%
Connecticut: #21,465 of 34,797 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Hasan Ulkarim has been granted 1 US patent while listed as an inventor at Precision Combustion. All of these patents were granted in 2001. Hasan Ulkarim ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Hasan Ulkarim in Hamden, CT, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6174159 Method and apparatus for a catalytic firebox reactor Lance L. Smith, Shahrokh Etemad, Marco J. Castaldi, William C. Pfefferle 2001-01-16