Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Sandra R. Collins — 3 Patents

ASAstropower: 3 patents #8 of 18Top 45%
Chesapeake City, MD: #7 of 23 inventorsTop 35%
Maryland: #10,129 of 35,612 inventorsTop 30%
Overall (All Time): #1,629,891 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6111191 Columnar-grained polycrystalline solar cell substrate and improved method of manufacture Robert B. Hall, Allen M. Barnett, Joseph C. Checchi, David H. Ford, Christopher L. Kendall +2 more 2000-08-29
RE36156 Columnar-grained polycrystalline solar cell and process of manufacture Robert B. Hall, Allen M. Barnett, Joseph C. Checchi, David H. Ford, Christopher L. Kendall +2 more 1999-03-23
5496416 Columnar-grained polycrystalline solar cell and process of manufacture Robert B. Hall, Allen M. Barnett, Joseph C. Checchi, David H. Ford, Christopher L. Kendall +2 more 1996-03-05