RB

Robert E. Burkhalter

PB Parker Pen (Benelux) B.V.: 1 patents #4 of 14Top 30%
📍 Janesville, WI: #153 of 319 inventorsTop 50%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,910,691 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4954002 Writing instrument with membrane vent and their manufacture Philip Wallis, Thomas D. Hall 1990-09-04