Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RL

Roger E. Luehrs — 3 Patents

3M: 3 patents #4,239 of 11,543Top 40%
Arden Hills, MN: #86 of 227 inventorsTop 40%
Minnesota: #19,251 of 52,454 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Roger E. Luehrs has been granted 3 US patents while listed as an inventor at 3M. The first was granted in 2001 and the most recent in December 2013. Roger E. Luehrs ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Roger E. Luehrs in Arden Hills, MN, US.

Patents per Year

Patents granted per year, 2001 to 2013Bar chart with a peak of 1 patents in 2001.peak 12001: 1 patents20012007: 1 patents20072013: 1 patents2013

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
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 $10,265,000
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 $17,388,000
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 $22,986,000