Inventor · disambiguated record

Robert L Middleton, Sr.

Also filed as: MIDDLETON SR ROBERT L · MIDDLETON SR ROBERT LEROY

3 granted patents·25 citations·filing 2006–2016

66Inventor score

Technology areasY10T F01N

Files withJOHNSON DOUGLAS M1 MIDDLEVILLE TOOL & DIE CO1 Middleville Tool & Die Company1

Top patents by PatentIndex Score

3 records

0194US9605581B1Passive exhaust valve with floating spring stopMIDDLEVILLE TOOL & DIE CO·Filed 2016·Granted Mar 28, 2017·17 cites·20 claims
0266US8091201B2Stamped tubular member and method and apparatus for making sameJOHNSON DOUGLAS M·Filed 2006·Granted Jan 10, 2012·7 cites·18 claims
0347US8356396B2Method for making threaded tubeMiddleville Tool & Die Company·Filed 2009·Granted Jan 22, 2013·1 cites·22 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →