Inventor · disambiguated record

John D. Efner

Also filed as: EFNER JOHN · EFNER JOHN D

5 granted patents·5 pending applications·9 citations·filing 20172025

70Inventor score
Technology areasB41FF26BB41PG01NG05B
Files withBALL CORP10

Top patents by PatentIndex Score

10 records

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John D. Efner — Patent Inventor | PatentIndex