Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Charles J. Schell — 2 Patents

CACalgon: 2 patents #60 of 151Top 40%
Dorpsstraat, PA: #211 of 560 inventorsTop 40%
Pennsylvania: #30,766 of 74,527 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Charles J. Schell has been granted 2 US patents while listed as an inventor at Calgon. The first was granted in 1992 and the most recent in November 1993. Charles J. Schell ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Charles J. Schell in Dorpsstraat, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5262061 Zinc, iron and manganese stabilization using polyether polyamino methylene phosphonates Jasbir S. Gill, Nancy S. Sherwood 1993-11-16 $42,536,000
5128045 Method for stabilizing metal ions in the presence of biofouling organisms Jennifer R. Parsons, Beverly Bendiksen 1992-07-07 $51,920,000