RB

Richard M. Berger

AF American Filtrona: 2 patents #1 of 4Top 25%
📍 Boulder, CO: #11 of 180 inventorsTop 7%
🗺 Colorado: #33 of 1,224 inventorsTop 3%
Overall (1989): #7,772 of 140,708Top 6%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4869274 Cooling apparatus for use in the manufacture of tobacco filters — 1989-09-26
4869275 Ultra-high filtration filter — 1989-09-26
4822193 Ink reservoir having continuous random sliver with stretch yarn — 1989-04-18