Inventor · disambiguated record
Geoffrey R. Zhang
Also filed as: ZHANG GEOFFREY · ZHANG GEOFFREY R
7 granted patents·1 pending application·49 citations·filing 2005–2020
82Inventor score
Top patents by PatentIndex Score
8 records- 0188US7717473B1Dual walled transfer tubePARKER HANNIFIN CORP·Filed 2007·Granted May 18, 2010·25 cites·14 claims
- 0286US11137100B2Zero-flow fire-resistant thread-lock quick disconnect couplingPARKER HANNIFIN CORP·Filed 2020·Granted Oct 5, 2021·2 cites·19 claims
- 0379US9279529B2Breakaway thread-lock quick connect/disconnect couplingZHANG GEOFFREY R·Filed 2011·Granted Mar 8, 2016·12 cites·20 claims
- 0477US9303776B2Non chattering pressure relief valvePARKER HANNIFIN CORP·Filed 2013·Granted Apr 5, 2016·4 cites·11 claims
- 0558US8480133B2Pressure balanced transfer tube assembly with first and second inner housings that move telescopicallyZHANG GEOFFREY R·Filed 2009·Granted Jul 9, 2013·6 cites·15 claims
- 0652US10221953B2Non chattering pressure relief valvePARKER HANNIFIN CORP·Filed 2017·Granted Mar 5, 2019·0 cites·6 claims
- 0749US9709182B2Non chattering pressure relief valvePARKER HANNIFIN CORP·Filed 2015·Granted Jul 18, 2017·0 cites·9 claims
- 0836US2006099843A1Dielectric fittingsFULLNER TODD C·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →