Inventor · disambiguated record

John Mccullagh

Also filed as: MCCULLAGH JOHN · MCCULLAGH JOHN A

2 granted patents·17 citations·filing 2008–2020

52Inventor score

Technology areasE04H E21B

Files withDOLMAN LEE F1 MCCULLAGH TIM1

Top patents by PatentIndex Score

2 records

0172US8307913B2Drilling system with drill string valvesDOLMAN LEE F·Filed 2008·Granted Nov 13, 2012·17 cites·15 claims
0227US12351426B2Roller apparatus for a cover and method of use thereofMCCULLAGH TIM·Filed 2020·Granted Jul 8, 2025·0 cites·15 claims

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