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

Norbert L. Johnson — 3 Patents

TCTrustees Of Tufts College: 1 patents #219 of 481Top 50%
3M: 1 patents #7,251 of 11,543Top 65%
Minneapolis, MN: #1,992 of 6,114 inventorsTop 35%
Minnesota: #19,251 of 52,454 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Norbert L. Johnson has been granted 3 US patents while listed as an inventor at 3M. The first was granted in 1999 and the most recent in March 2014. Norbert L. Johnson ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Norbert L. Johnson in Minneapolis, MN, US.

Patents per Year

Patents granted per year, 1999 to 2014Bar chart with a peak of 1 patents in 1999.peak 11999: 1 patents19992002: 1 patents20022014: 1 patents2014

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8675194 Apparatus for measuring the retroreflectance of materials Stephen K. Eckhardt 2014-03-18
6450393 Multiple-material prototyping by ultrasonic adhesion Charalabos C. Doumanidis 2002-09-17
5940212 Cube corner article with altered inactive areas and method of making same Theodore J. Szczech, Bruce D. Orensteen 1999-08-17 $28,544,000