Inventor · disambiguated record
Kathryn Elizabeth Primmer
Also filed as: PRIMMER KATHRYN ELIZABETH
2 granted patents·23 citations·filing 2008–2009
60Inventor score
Files withHORNABROOK GRAHAM ALFRED2
Top patents by PatentIndex Score
2 records- 0176US9222893B2Modified apparatus and method for assessment, evaluation and grading of gemstonesHORNABROOK GRAHAM ALFRED·Filed 2009·Granted Dec 29, 2015·16 cites·7 claims
- 0272US8436986B2Apparatus and methods for assessment, evaluation and grading of gemstonesHORNABROOK GRAHAM ALFRED·Filed 2008·Granted May 7, 2013·7 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →