RL

Roger E. Luehrs

3M: 3 patents #4,214 of 11,543Top 40%
Overall (All Time): #1,547,593 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8596799 Cube corner cavity based retroreflectors with transparent fill material Kenneth L. Smith, Gerald M. Benson, Michele A. Craton, Michael P. Daniels 2013-12-03
7182829 Cube corner cavity based retroreflectors with transparent fill material Kenneth L. Smith, Gerald M. Benson, Michele A. Craton, Michael P. Daniels 2007-02-27
6280822 Cube corner cavity based retroeflectors with transparent fill material Kenneth L. Smith, Gerald M. Benson, James C. Coderre, Cheryl M. Frey, Bruce B. Wilson +2 more 2001-08-28