AG

Al Gilbertson

G( Gemological Institute Of America, Inc. (Gia): 3 patents #13 of 47Top 30%
Caltech: 1 patents #2,143 of 4,321Top 50%
📍 Albany, OR: #76 of 372 inventorsTop 25%
🗺 Oregon: #6,381 of 28,073 inventorsTop 25%
Overall (All Time): #855,582 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D699618 Surface ornamentation for a diamond Benjamin Gudlewski 2014-02-18
8239143 System and method for gemstone cut grading Troy Blodgett, Ronald Geurts, Barak Green, T. Scott Hemphill, Tom Moses 2012-08-07
8095325 System and method for gemstone cut grading Troy Blodgett, Ronald Geurts, Barak Green, T. Scott Hemphill, Tom Moses 2012-01-10
7571060 System and method for gemstone cut grading Troy Blodgett, Ronald Geurts, Barak Green, T. Scott Hemphill, Tom Moses 2009-08-04
6795171 Device for judging symmetry, brightness, and efficiency of light return in precious stones 2004-09-21
6665058 Device for judging symmetry, brightness, and efficiency of light return in precious stones 2003-12-16