RD

Ronald A. Durgin

SC Sweetheart Cup Company: 2 patents #21 of 43Top 50%
📍 Pleasanton, CA: #1,209 of 3,062 inventorsTop 40%
🗺 California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,297,464 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5085366 High gloss paper cup Derek S. Matheson, Delvin K. Border, Carlton L. Kennet, Daniel E. Hammett 1992-02-04
5039560 Method for producing high gloss cup Derek S. Matheson, Delvin K. Border, Carlton L. Kemmet, Daniel E. Hammett 1991-08-13
4629088 Container lid with drink-through opening 1986-12-16
4366696 Nestable can method of manufacture Florentino Q. Apelin, Gordon D. Henderson 1983-01-04