Inventor · disambiguated record

John Madsen

Also filed as: MADSEN JOHN · MADSEN JOHN R

2 granted patents·21 citations·filing 1996–1997

58Inventor score

Technology areasA63D

Files withAMF BOWLING INC2

Top patents by PatentIndex Score

2 records

0141US5800274ABowling alley bumper system for producing visual effectsAMF BOWLING INC·Filed 1996·Granted Sep 1, 1998·17 cites·18 claims
0230US5779554AThree-dimensional bowling alley masking unitAMF BOWLING INC·Filed 1997·Granted Jul 14, 1998·4 cites·8 claims

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