Inventor · disambiguated record
Graham Harwood Stephenson
Also filed as: STEPHENSON GRAHAM H · STEPHENSON GRAHAM HARWOOD
2 granted patents·3 pending applications·4 citations·filing 2015–2025
45Inventor score
Technology areasF16K
Files withSWAGELOK CO5
Top patents by PatentIndex Score
5 records- 0175US9835256B2Self-aligning valve sealSWAGELOK CO·Filed 2015·Granted Dec 5, 2017·4 cites·16 claims
- 0267US2024318731A1Poppet-style valve arrangementsSWAGELOK CO·Filed 2024·Application pending·0 cites
- 0366US2025215981A1Poppet-style valve arrangementsSWAGELOK CO·Filed 2025·Application pending·0 cites
- 0461US11988288B2Poppet-style valve arrangementsSWAGELOK CO·Filed 2022·Granted May 21, 2024·0 cites·13 claims
- 0544US2018031131A1Self-aligning valve sealSWAGELOK CO·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →