RD

Ralph M. Duckworth

LB Lever Brothers: 4 patents #59 of 819Top 8%
CC Chesebrough-Pond'S Usa, Division Of Conopco: 1 patents #150 of 307Top 50%
📍 Tarporley, GB: #5 of 18 inventorsTop 30%
Overall (All Time): #1,061,394 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5045305 Oral hygiene composition John R. Clarkson, Andrew Malcolm Murray, Timothy James Price 1991-09-03
4935226 Toothpastes 1990-06-19
4935227 Toothpastes 1990-06-19
4927625 Toothpastes 1990-05-22
4837007 Fluoridating oral cavity Andrew Murray 1989-06-06