Inventor · disambiguated record
Keith R. Hazelrigg
Also filed as: HAZELRIGG KEITH R
3 granted patents·80 citations·filing 1981–1991
74Inventor score
Top patents by PatentIndex Score
3 records- 0179US4460156AWellhead connector with check valveNL INDUSTRIES INC·Filed 1981·Granted Jul 17, 1984·47 cites·9 claims
- 0261USD351336SStrap-type securing deviceFSSL INC·Filed 1991·Granted Oct 11, 1994·12 cites·1 claims
- 0352US4426104AUnderwater connector apparatusNL INDUSTRIES INC·Filed 1981·Granted Jan 17, 1984·21 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →