AT

Alexander Telfer

Shell Oil Compny: 3 patents #34 of 337Top 15%
📍 Houston, TX: #34 of 924 inventorsTop 4%
🗺 Texas: #160 of 4,134 inventorsTop 4%
Overall (1989): #11,814 of 140,708Top 9%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4870278 Wide-range fluid level detector Anthony M. Leonardi-Cattolica, Dale H. McMillan 1989-09-26
4829837 Robotic liquid separation sensing using a cannula 1989-05-16
4820425 Liquid sensor for robotic filtration station 1989-04-11