Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Rosario Leopardi — 4 Patents

ADArch Development: 4 patents #42 of 350Top 15%
Chicago, IL: #3,117 of 13,327 inventorsTop 25%
Illinois: #21,640 of 84,256 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Rosario Leopardi has been granted 4 US patents while listed as an inventor at Arch Development. The first was granted in 1999 and the most recent in April 2004. Rosario Leopardi ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Rosario Leopardi in Chicago, IL, US.

Patents per Year

Patents granted per year, 1999 to 2004Bar chart with a peak of 2 patents in 2001.peak 21999: 1 patents19992001: 2 patents20012004: 1 patents2004

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6723511 Herpes simplex virus ICP4 is an inhibitor of apoptosis Bernard Roizman 2004-04-20
6218103 Herpes simplex virus US3 and ICP4 as inhibitors of apoptosis Bernard Roizman 2001-04-17
6210926 Herpes simplex virus ICP4 is an inhibitor of apoptosis Bernard Roizman 2001-04-03
5876923 Herpes simplex virus ICP4 as an inhibitor of apoptosis Bernard Roizman 1999-03-02