DO

Donald R. O'Keefe

3M: 2 patents #177 of 1,133Top 20%
📍 Roseville, MN: #7 of 52 inventorsTop 15%
🗺 Minnesota: #587 of 4,549 inventorsTop 15%
Overall (2002): #67,449 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6482488 Repaired scratched and/or abraded transparent substrates having protective removable sheets thereon and a method of making Jeffrey R. Janssen, Albert I. Everaerts, William F. Sheffield 2002-11-19
6461709 Graffiti and/or environmental protective article having removable sheets, substrates protected therewith, and a method of use Jeffrey R. Janssen, Albert I. Everaerts, William F. Sheffield 2002-10-08