DF

Derwin Fritts

G( Gemological Institute Of America, Inc. (Gia): 3 patents #13 of 47Top 30%
📍 Carlsbad, CA: #1,138 of 2,500 inventorsTop 50%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,582,029 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7382528 Gem microscope having a swivel base and a stationary power cord Howard Pomerantz, Sherman Gingerella 2008-06-03
7142358 Gem microscope with portability kit Howard Pomerantz, Sherman Gingerella 2006-11-28
7009762 Gem microscope having a swivel base and a stationary power cord Howard Pomerantz, Sherman Gingerella 2006-03-07