Inventor · disambiguated record
Dennis C. Hatfield
Also filed as: HATFIELD DENNIS · HATFIELD DENNIS C
4 granted patents·37 citations·filing 2002–2020
74Inventor score
Top patents by PatentIndex Score
4 records- 0174US11835181B2Attachable/detachable pressure evacuation deviceWESTERN VALVE INC·Filed 2020·Granted Dec 5, 2023·2 cites·24 claims
- 0272US6742538B1Method and apparatus for orbital and seal welded relief device on a compressed gas cylinderWESTERN VALVE·Filed 2002·Granted Jun 1, 2004·24 cites·12 claims
- 0347US7270140B2Poppet valve assemblyADERHOLT STEVEN K·Filed 2004·Granted Sep 18, 2007·6 cites·9 claims
- 0445US7066193B2Poppet shear protection apparatus and systemADERHOLT STEVEN K·Filed 2003·Granted Jun 27, 2006·5 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →