Inventor · disambiguated record
John Chappell
Also filed as: CHAPPELL JOHN A · CHAPPELL JOHN C · CHAPPELL JR JOHN A
2 granted patents·2 pending applications·18 citations·filing 1979–2025
55Inventor score
Top patents by PatentIndex Score
4 records- 0193US12492625B1Integrated junction and check valve assemblies for hydraulic fracturing system manifolds and related methodsSCOUT SURFACE SOLUTIONS LLC·Filed 2025·Granted Dec 9, 2025·1 cites·18 claims
- 0253US4263655ADigital interface circuit for control of pressure scannerUS ARMY·Filed 1979·Granted Apr 21, 1981·17 cites·10 claims
- 0340US2004235147A1System, method, and encased probe array productAFFYMETRIX INC·Filed 2004·Application pending·0 cites
- 0431US2002075490A1System and method for addressable light-directed microarray printingAFFYMETRIX INC·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →