DO

Donald R. O'Keefe

3M: 3 patents #4,214 of 11,543Top 40%
Overall (All Time): #1,618,559 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

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
6180245 Method of repairing scratched and/or abraded transparent substrates and the repaired substrates Jeffrey R. Janssen, Albert I. Everaerts, William F. Sheffield 2001-01-30