RS

Robert Stewart

IS Industrial Scientific: 1 patents #24 of 38Top 65%
📍 Toronto, CA: #1,124 of 9,482 inventorsTop 15%
Overall (All Time): #728,180 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
D819153 Swim vest Ryan Landen 2018-05-29
8607930 Extendable ladder for boat trailer or other trailer to access an elevated surface 2013-12-17
8215452 Extendable ladder for trailer, motor home, or other vehicle James Edward Stewart 2012-07-10
6997347 Apparatus and method for generating calibration gas Wenfeng Peng, David Green 2006-02-14
6179054 Down hole gas separator 2001-01-30
4841356 Fuses and their manufacture Kenneth D. Howton, Herman R. Zeitler 1989-06-20
4232467 Sign support stake 1980-11-11