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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Charles Biddle — 2 Patents

CRComposite Rotor: 2 patents #3 of 5Top 60%
Stockton, CA: #124 of 477 inventorsTop 30%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Charles Biddle has been granted 2 US patents while listed as an inventor at Composite Rotor. The first was granted in 1999 and the most recent in November 2002. Charles Biddle ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Charles Biddle in Stockton, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6482342 Resin transfer molding of centrifuge rotor Mohammad Ghassem Malekmadani, Hung Nguyen, Reza Sheikhrezai 2002-11-19
5972264 Resin transfer molding of a centrifuge rotor Mohammad Ghassem Malekmadani, Hung Nguyen, Reza Sheikhrezai 1999-10-26