Inventor · disambiguated record
John Hayhurst
Also filed as: HAYHURST JOHN · HAYHURST JOHN T
5 granted patents·35 citations·filing 1988–2004
78Inventor score
Top patents by PatentIndex Score
5 records- 0151US6832653B1Method for enhancing gas well secondary recovery operationsVITECH HOLDINGS L P·Filed 2003·Granted Dec 21, 2004·4 cites·9 claims
- 0251US6622790B1Method for enhancing gas well secondary recovery operationsFiled 2002·Granted Sep 23, 2003·3 cites·20 claims
- 0346US5001805ALubrication evacuation methodAPEX TECHNOLOGIES INC·Filed 1990·Granted Mar 26, 1991·15 cites·4 claims
- 0439US4925496AEvacuation method for motor operated valves lubricantAPEX TECHNOLOGIES INC·Filed 1988·Granted May 15, 1990·8 cites·8 claims
- 0534US7198106B2Method for enhancing gas well secondary recovery operationsHAYHURST JOHN·Filed 2004·Granted Apr 3, 2007·5 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →