Individual holder
SPENGLER ROBERT G
2 granted patents·2 pending applications·38 citations·filing 1994–2008
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0179US7216742B2Ladder stabilizersSPENGLER ROBERT G·Filed 2003·Granted May 15, 2007·33 cites·10 claims
- 0254US2007240939A1Ladder StabilizersSPENGLER ROBERT G·Filed 2007·Application pending·0 cites
- 0335USD353308SShovelSPENGLER ROBERT G·Filed 1994·Granted Dec 13, 1994·5 cites·1 claims
- 0434US2008185225A1Step ladder stabilizersSPENGLER ROBERT G·Filed 2008·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →