Inventor · disambiguated record
John Robert Duvall
Also filed as: DUVALL JOHN ROBERT
1 granted patent·1 pending application·0 citations·filing 2019–2024
13Inventor score
Technology areasB01D
Files withMANN HUMMEL FILTRATION TECH US LLC2
Top patents by PatentIndex Score
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →