Inventor · disambiguated record
Norbert L. Johnson
Also filed as: JOHNSON NORBERT · JOHNSON NORBERT L
3 granted patents·242 citations·filing 1997–2011
75Inventor score
Top patents by PatentIndex Score
3 records- 0196US6450393B1Multiple-material prototyping by ultrasonic adhesionTUFTS COLLEGE·Filed 2001·Granted Sep 17, 2002·188 cites·24 claims
- 0274US5940212ACube corner article with altered inactive areas and method of making same3M INNOVATIVE PROPERTIES CO·Filed 1997·Granted Aug 17, 1999·52 cites·32 claims
- 0370US8675194B2Apparatus for measuring the retroreflectance of materialsECKHARDT STEPHEN K·Filed 2011·Granted Mar 18, 2014·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →