FH

Frederick B. Hadtke

JV James River Corporation Of Virginia: 1 patents #16 of 26Top 65%
PI Pentech International: 1 patents #1 of 4Top 25%
📍 New Providence, NJ: #6 of 54 inventorsTop 15%
🗺 New Jersey: #539 of 4,679 inventorsTop 15%
Overall (1997): #40,815 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5699620 Apparatus for sharpening crayon marking instruments to form an improved arcuate safety marking tip Linda El-Fakir, Greg Rosen 1997-12-23
D386338 Cup dispenser Jonathan E. Rush 1997-11-18